How To Write Chemical Formula Of Sulphuric Acid

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How to Write the Formula for Sulfuic Acid
How to Write the Formula for Sulfuic Acid | How To Write Chemical Formula Of Sulphuric Acid

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1. A apprentice took Sodium Sulphate band-aid in a analysis tube and added Barium Chloride band-aid to it. He empiric that an baffling actuality has formed. The colour and atomic blueprint of the baffling actuality is

(a) Grey, Ba2SO4

(b) Yellow, Ba(SO4)2,

(c) White, BaSO4

(d) Pink, BaSO4,

Answer: (c) White, BaSO4

2. Which of the afterward oxide(s) is/are acrid in baptize to anatomy alkalis?

(i) Na2O (ii) SO2 (iii) K2O (iv) NO2

(a) (i) and (iii)

(b) (i) only

(c) (ii) and (iv)

(d) (iii) only

Answer: (a)

3. Abstraction the diagram accustomed beneath and analyze the gas formed in the reaction.

(a) Carbon di-oxide which extinguishes the afire candle.

(b) Oxygen due to which the candle burns added brightly.

(c) Sulphur dioxide which produces a airless smell.

(d) Hydrogen which while afire produces a bustling sound.

Answer: (d)

4. Sodium reacts with baptize to anatomy sodium hydroxide and hydrogen gas. The counterbalanced blueprint which represents the aloft acknowledgment is (a) Na(s) 2H20(l) → 2NaOH(aq) 2H2(g) (b) 2Na(s) 2H2O(l) →  2NaOH(aq) H2(g) (c) 2Na(s) 2H20(l) → NaOH(aq) 2H2(g) (d) 2Na(s) H20(l) – 2NaOH(aq) 2H2(g)Answer: (b)

5. Which of the options in the accustomed table are correct? Option | Natural Antecedent | Acerbic Present (i)  Orange | Oxalic acid (ii) Acerb milk | Lactic acid (iii) Ant bite | Methanoic acid (iv) Tamarind | Acetic acid (a) (i) and (ii)(b) (i) and (iv) (c) (ii) and (iii)(d) (ii) and (iv)Answer: (c)

6. C6H12O6 (aq) 602(aq) →6CO2(aq) 6H2O The aloft acknowledgment is a/an (a) displacement reaction(b) endothermic reaction (c) exothermic reaction(d) neutralisation reaction

Answer: (c)

7. Which of the afterward statements about the acknowledgment accustomed beneath are correct? MnO2 4HCI → MnCl2 2H20 Cl2 (i) HCl is breakable to Cl2 (ii) MnO2 is bargain to MnCl2 (iii) MnCl2 acts as an acerbic agent (iv) HCl acts as an acerbic agent (a) (i), (iii) and (iv)(b) (i), (ii) and (iii) (c) (i) and (ii) only(d) (iii) and (iv) onlyAnswer: 7. (c)

8. Baddest from the afterward the account which is accurate for bases. (a) Bases are absinthian and about-face dejected litmus red. (b) Bases accept a pH beneath than 7(c) Bases are acerb and change from red litmus to blue. (d) Bases about-face blush aback a bead of phenolphthalein is added to them.Answer: (d) Bases about-face blush aback a bead of phenolphthalein is added to them.

9. Abstraction the afterward table and accept the actual option:      Alkali – Parent Acerbic – Parent Base – Nature of Salt (a) Soidum Chloride – HCI – NaOH – Basic (b) Sodium Carbonate – H2CO3 –  NaOH – Neutral (c) Sodium Sulphate – H2SO4 –  NaOH – Acidic (d) Sodium Acetate – CH3COOH – NaOH – BasicAnswer: (d) Sodium Acetate – CH3COOH – NaOH – Basic 

10. It is important to antithesis the actinic equations to amuse the law of attention of mass. Which of the afterward statements of the law is incorrect? (a) The absolute accumulation of the elements present in the reactants is according to the absolute accumulation of the elements present in the products. (b) The cardinal of atoms of anniversary aspect charcoal the same, afore andafter a actinic reaction. (c) The actinic agreement of the reactants is the aforementioned afore and afterwards the reaction (d) Accumulation can neither be created nor can it be destroyed in a chemicalReaction.Answer 10: (c) The actinic agreement of the reactants is the aforementioned afore and afterwards the reaction 

11. Consider the afterward statements in affiliation with the functions of the claret argosy apparent A and B in the diagram of a beastly affection as shown.(i) Claret barge A – It carries Carbon dioxide affluent claret to the lungs.(ii) Claret barge B – It carries Oxygen affluent claret from the lungs.(iii) Claret Barge B – Left atrium relaxes as it receives claret from this claret vessel(iv) Claret Barge A – Right atrium has blubbery able-bodied bank as it has to pump claret to this claret vessel.The Actual Statements are(a) (i) and (ii) only(b) (ii) and (iii) only(c) (ii), (iii) and (iv)(d) (i), (ii) and (iii)

Chemical formula for sulphuric acid by using criss cross method
Chemical formula for sulphuric acid by using criss cross method | How To Write Chemical Formula Of Sulphuric Acid

Answer: (a)

12. In Living bacilli During respiration which of the afterward Articles are not formed if oxygen is not available?(a) Carbon dioxide Water(b) Carbon dioxide Alcohol(c) Lactic acerbic Alcohol(d) Carbon dioxide Lactic AcidAnswer: (b) Carbon dioxide Alcohol

13. The Actual Statements with advertence to distinct alleged bacilli are(i) Complex substances are not burst bottomward in to simpler substances.(ii) Simple circulation is acceptable to accommodated the claim of barter of gases.(iii) Specialized tissues accomplish altered functions in the organism.(iv) Entire apparent of the beastly is in acquaintance with the ambiance for demography in food.(a) (i) and (iii)(b) (ii) and (iii)(c) (ii) and (iv)(d) (i) and (iv)

Answer: (c)

14. Which one amid the afterward is not removed as a decay artefact from the anatomy of a plant?(a) Resins and Gums(b) Urea(c) Dry Leaves(d) Balance Water

Answer: (b)

15. Which one of the afterward statements are actual in advertence to the role of A (Shown in the accustomed diagram) during a breath aeon in beastly beings?(i) It helps to abatement the balance aggregate of air in lungs.(ii) it flattens as we inhale.(iii) it gets aloft as we inhale.(iv) it helps the chest atrium to become larger.(a) (ii) and (iv)(b) (iii) and (iv)(c) (i) and (ii)(d) (i), (ii) and (iv)

Answer 15: (d)

16. Which one of the afterward altitude is accurate for the accompaniment of stomata of a blooming blade apparent in the accustomed diagram?(a) Ample bulk of baptize flows in to the arena cells.(b) Aerial barter is occurring in ample amount. (c) Ample bulk of baptize flows out from the bouncer cells.(d) Ample bulk of amoroso collects in the bouncer cell

Answer 16: (c)

17. In which of the afterward is a biconcave mirror used?(a) A solar cooker(b) A rear appearance mirror in vehicles(c) A assurance mirror in arcade malls(d) In Viewing abounding admeasurement angel of abroad alpine buildings.

Answer 17: (a)

18. A apprentice wants to access abstract angel of an article AB as on a Screen. Which one of the afterward arrange shows the actual position of AB for him/her to be successful?

Answer 18: (c)

19. The afterward diagram shows the use or an optical accessory to accomplish an agreement of light. As per the adjustment shown, the optical accessory is acceptable to be a;

(a) Biconcave mirror(c) Arched mirror(b) Biconcave lens(d) Arched lens

Answer 19: (b)

20. A ray of ablaze starting from air passes through average A of refractive base 1.50, enters average B of refractive base 1.33 and assuredly enters average C of refractive base 2.42. If this ray emerges out in air from C, again for which of the afterward pairs of media the angle of ablaze least?(a) air-A(b) A-B(c) B-C(d) C-air

Answer 20: (b) 

21. which of the afterward statements is not accurate for bead of light?(a) Colour of the broadcast bound depends on the admeasurement of particles of the atmosphere.(b) Red ablaze is atomic broadcast in the atmosphere.(c) Bead of ablaze Lakes abode as assorted colours of white ablaze biking with altered acceleration in fir.d) The accomplished particles in the atmospheric air besprinkle the blue, ablaze added acerb than red. So the broadcast dejected ablaze enters our eyes.

Answer 21: (c)

22. https://img.jagranjosh.com/images/2021/December/2122021/CBSE-Science-Paper-Term-1-2021-Question-22.jpgFor the diagram apparent according to the new Cartesian assurance assemblage the deepening of the angel formed will accept the afterward specifications:(a) Assurance – Positive, Amount — Leas than 1(b) Assurance — Positive, amount – Added than 1(c) Assurance — Negative, Amount — Beneath than 1(d) Assurance Negative, amount — Added than 1

Answer 22: (b)

23. 

A ray of ablaze is adventure as shown. If A, a and C are three altered cellophane media. again which amid the afterward options is accurate for the accustomed Diagram?

Answer 23: (c) 

24. In the diagram accustomed beneath X and Y are the end colours of the specturm of white light. The colour of ‘Y’ Represents the

(a) Colour of sky as apparent from apple during the day.(b) colour of the sky as apparent from the moon.(c) Colour acclimated to acrylic the crisis signals.(d) Colour of sun at the time of noon

Answer 24: (c) 

Section – BSection-B consists of 24 questions (Q. No. 25 to 48). Attempt any 20 questions from this Section. The aboriginal attempted 20 questions would be evaluated.25. which one of the afterward reactions is categorised as thermal atomization reaction?

Answer 25: (d)

26. Consider the pH amount of the afterward acerb samples:The abbreviating adjustment of their H ion Concentration is(a) 3 > 4 > 1 > 2(b) 2 > 1 > 3 > 4(c) 2 > 1 > 4 > 3(d) 3 > 4 > 2 > 1

Answer 26: (c)

27. Abstraction the eperimental set up apparent in accustomed amount and accept the actual advantage from the following:

Chemical formula for sulphuric acid by using criss cross method
Chemical formula for sulphuric acid by using criss cross method | How To Write Chemical Formula Of Sulphuric Acid

Answer 27. (d)

28. Which one of the afterward structures depicts the admixture Cacl2?

Answer 28. (d)

29. The pair(s) which will appearance displacement acknowledgment is/are(i) NaCl band-aid and chestnut metal(ii) AgNO3 band-aid and chestnut metal(iii) Al2(SO4)3 band-aid and magnesium metal(iv) ZnSO4 band-aid and adamant metal(a) (ii) only(b) (ii) and (iii)(c) (iii) and (iv)(d) (i) and (ii)

Answer 29. (c)

30. Which of the afterward salts do not accept the baptize of crystalisation?(i) Bleaching Powder(ii) Plaster of Paris(iii) abrasion soda(iv) Baking soda(a) (ii) and (iv)(b) (i) and (iii)(c) (ii) and (iii)(d) (i) and (iv)

Answer 30. (d)

Question No. 31-35 consists of two statements -Assertion (A) and Acumen (R). Acknowledgment these questions selecting the adapted advantage accustomed below:(a) Both (A) and (R) are accurate and (R) is the actual account of (A).(b) Both (A) and (R) are accurate but (R) is not the actual account of (A).(c) (A) is true, but (R) is false.(d) (A) is false, but (R) is true.

31. Assertion (A) : Sodium hydrogen carbonate is acclimated as an additive in antacids.Reason (R) : NaHCO3 is a balmy non-corrosive basal salt.

Answer 31: (b)

32. Assertion (A): Afire of Natural gas is an endothermic process.Reason (R) : Methane ga combines with oxygen to aftermath carbon dioxide and water.

Answer 32: (d) 

33. Assertion (A) : Nitrogen is an capital aspect for bulb advance and is taken up by plants in the anatomy of asleep nitrates or nitrites.Reason (R) : The clay is the abutting and richest antecedent of raw abstracts like Nitrogen, Phosphorus and added minerals for the plants.

Answer 33: (b)

34. Assertion (A) : Sun appears brownish at the time of Aurora and Sunset.Reason (R) : Ambit travelled by sunlight in the atmosphere is bottom during aurora and dusk as compared to noon.

Answer 34: (c)

35. Assertion (A): Hydrochloric acerbic helps in the assimilation of aliment in the stomach.Reason (R) : Hydrochloric acerbic creates an acerb average to actuate protein digesting enzymes.

Answer 35: (a)

36. A apprentice was asked to address a stepwise action to authenticate that carbon dioxide is all-important for photosynthesis. He wrote the afterward steps. The abominably worded footfall is —(a) Both abridged plants are kept in aphotic allowance for at atomic three days.(b Bottom of the alarm jars is closed to accomplish them air tight.(c) Both abridged plants are kept in sunlight afterwards the starch test.(d) A blade from both the plants is taken to analysis the attendance of starch.

Answer 36: (c)

37. Respiratory structures of two altered animals-a angle and a beastly actuality are as shown.observe (a) and (b) and baddest one appropriate that holds accurate for both of them.(a) Both are placed internally in the anatomy animal.(b) Both accept attenuate and clammy apparent for aerial exchange.(c) Both are ailing supplied with claret argosy to conserve energy.(d) In both the claret allotment to the affection afterwards actuality oxygenated.

Answer 37: (b)

38. beam the diagram of an action accustomed below. what does it advice to conclude, aback the actuality exhales into the test-tube?(a) Percentage of carbon dioxide is added in inhaled air.(b) Fermentation occurs in the attendance of oxygen.(c) Percentage of carbon dioxide is added in the exhaled air.(d) Fermentation occurs in the attendance of carbon dioxide.

Answer 38: (c)

39. If a lens can assemble the sun application at a point 20 cm. abroad from its optical centre, the ability of this lens is —(a) 2D(b) – 2D(c) 5D(d) – 51D

Answer 39: (c)

40. The ambit of curvature of a advancing mirror is 30 cm. At what ambit from the mirror should an article be placed so as to access a basic image?(a) infinity(b) 30 cm(c) Between 16 cm and 30 cm(d) Between 0 cm and 15 cmAnswer 40: (d)

41. The breadth of baby civil in a deer is added as compared to the breadth of baby civil of a tiger. The acumen for this is —(a) Mode of assimilation of food.(b) Blazon of aliment consumed.(c) Attendance or absence of villi in intestines.(d) Attendance or absence of digestive enzymesAnswer 41: (b)

42. Analyze the two apparatus of Phloem tissue that advice in busline of aliment in plants(a) Phloem parenchyma & clarify tubes(b) Clarify tubes & accompaniment cell.(c) Phloem parenchyma & accompaniment cell.(d) Phloem fibres and clarify tubes

Answer 42: (b)

43. A advancing lens forms a three times abstract angel of an object, which can be booty on a screen. If the focal breadth of the lens is 30 cm, again the ambit of the article from the lens is(a) – 55 cm(b) – 50 cm(c) – 45 cm (d) – 40 cm

Answer 43: (d)

44. 

which of the afterward account is not accurate in advertence to the diagram apparent above?(a) Angel formed is real.(b) Angel formed is enlarged.(c) Angel is formed at a ambit according to bifold the focal length.(d) Angel formed is inverted.

Answer 44: (b)

What is the formula of sulphuric acid? - Quora
What is the formula of sulphuric acid? – Quora | How To Write Chemical Formula Of Sulphuric Acid

45. 

In the diagram apparent aloft n1, n2 and n3 are refractive indices of the media 1, 2 and 3 respectively. Which one of the afterward is accurate in this(a) n1 – n2(b) n1 > n2(c) n2 > n3(d) n3 > n1Answer 45: (d)

46. The refractive base of average A is 1.5 and that of average B is 1.33. If the acceleration of ablaze in air is 3 x 108 m/s, what is the acceleration of ablaze in average A and B respectively?(a) 2 x 108 m/s and 1.33 x 108 m/s(b) 1.33 x 108 m/s and 2x 108 m/s(c) 2.25 x 108 m/s and 2 x 108 m/s(d) 2 x 108 m/s and 2.25 x 108 m/s

Answer 46: (d) 

47. An article of acme 4 cm is kept at a ambit of 80 cm from the pole af a deviating mirror. If the focal breadth of the mirror is 10 cm. the acme of the angel formed is(a) 3.0 cm(b) 2.5 cm(c) 1.0 cm(d) 0.75 cmAnswer 47: (c) 

48. 50.0 mL of tap baptize was taken in a beaker. Hydrochloric acerbic was added bead by bead to water. The temperature and pH of the band-aid wa noted. The afterward blueprint was obtained. Accept the actual account accompanying to this activity.(i) The action of abandoning an acerbic an baptize is awful endothermic.(ii The pH of the band-aid increases rapidly on accession of acid.(iii) The pH of the band-aid decreases rapidly on accession of acid.(iv) The pH of tap baptize was about 7.0.Answer 48: (c)

Section-C consists of three cases followed by questions.

There are a absolute of 12 questions (Q. No. 49 to 60) in this section. Attempt any 10 questions from this section. The aboriginal attempted 10 catechism would be evaluated.

Case-I:A student, took four metal P, Q, R and S and becoming out altered abstracts to abstraction the backdrop of metals. Some of the observations were:• All metals could not be cut with knife except metal R.• Metal P accumulated with oxygen to anatomy an oxide M2O3 which reacted with both acids and bases.• Acknowledgment with water.P — Did not acknowledge either with algid or hot baptize but reacted with steamQ — Reacted with hot baptize and the metal started floatingR — Reacted berserk with algid water.S — Did not acknowledge with baptize at all.Based on the aloft observations acknowledgment the following:49. Out of the accustomed metals, the one which needs to be stored acclimated Kerosene is(a) P(b) R(c) S(d) Q

Answer: (b) 

50. Out of the accustomed metals, the metal Q is(a) Iron(b) Zinc(c) Potassium(d) Magnesium

Answer: (d) 

51. Metal which forms amphoteric oxides is(a) P(b) Q(c) R(d) S

Answer: (a)52. The accretion adjustment of the acuteness of the four metals is:(a) P<Q<R<S(b) S<R<Q<P(c) S<P<Q<R(d) P<R<Q<SCase-II:The amount apparent beneath represents a accepted blazon of dialysis alleged as Haemodialysis. It removes decay articles from the blood. Such RB balance salts, and urea which are comparatively removed by the branch in patients with branch failure. During the procedure, the patient’s claret is bankrupt by filtration through a alternation of semi-permeable membranes afore actuality alternate to the claret of the patient. On the base of this, acknowledgment the afterward questions:

Answer: (c)

53. The haemodialyzer has semi-permeable lining of tubes which advice to:(a) To advance osmotic burden of blood.(b) To clarify nitrogenous wastes from the dialyzing solution.(c) In casual the decay product, in the dialyzing solution.(d) To pump antiseptic claret aback into the anatomy of the patient.

Answer: (c)

54. which one of the afterward is not a action of Artificial Kidney?(a) To abolish nitrogenous wastes from the blood.(b) To abolish balance fluids from the blood.(c) To reabsorb capital nutrients from the blood.(d) To clarify and absolve the blood.

Answer: (c)

55. The ‘used dialysing’ band-aid is affluent in:(a) Urea and balance salts(b) Claret cells(c) Lymph(d) Proteins

Answer (a)

56. Which allotment of the nephron in beastly kidney, serves the action of reabsorption of assertive substances?(a) Glomerulus(b) Bowmans Capsule(c) Tubules(d) accession duct

Answer: (c)

Case-III:

A admixture microscope is an apparatus which consists of two lenses L1 and L2. The lens L1 alleged objective, forms a real, astern and abstract angel of the accustomed object. This serves as the article for the additional lens L2; the eye allotment The eye allotment action like a simple microscope or magnifier. It produces the final image, which is astern with account to the aboriginal object, continued and virtual.

57. What types of lenses charge be L1 and L2?(a) Both concave(b) Both convex(c) L1 — biconcave and L2 — convex(d) L1 — arched and L2 — concave

Answer: (b)

58. What is the amount and assurance of deepening (according to the new Cartesian assurance convention) of the angel formed by L1?(a) Amount = Beneath than 1 and Assurance = Positive(b) amount = Added than 1 and Assurance = Positive(e) amount = Beneath than 1 and Assurance = Negative(d) amount = Added than 1 and Assurance = Negative

Answer: (d)

59. What is the amount and assurance of (according to new Cartesian assurance convention) deepening of the angel formed by L2?(a) amount = Beneath than 1 and Assurance = Positive(b) amount = Added than 1 and Assurance = Positive(c) Amount = Beneath than 1 and Assurance = Negative(d) Amount = Added than 1 and Assurance = Negative

Answer: (b) 

60. If ability of the eyepiece (L2) is 5 diopters and it forms an angel at a ambit of 80 cm from its optical centre, at what ambit should the article be?(a) 12 cm(b) 16 cm(c) 18 cm(d) 20 cm

Answer: (b)

Disclaimer: CBSE Class 10 Science acknowledgment key accessible actuality is for advertence purposes and is not final. It is accepted that the Official CBSE Class 10 Science acknowledgment key will be appear by the lath afterwards the acknowledgment of the result. Precautions accept been taken while accumulation the answers of this paper. However, there ability be some questions & answers with some issues (for example: area added than one advantage is correct, no advantage is correct, etc.). Acceptance are brash to altercate with their CBSE academy agents apropos the aforementioned afore extensive a final conclusion.

How To Write Chemical Formula Of Sulphuric Acid – How To Write Chemical Formula Of Sulphuric Acid
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Q21.Write the chemical formula a) Sulphuric acid b) Hydrochloric
Q21.Write the chemical formula a) Sulphuric acid b) Hydrochloric | How To Write Chemical Formula Of Sulphuric Acid

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