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Which of the chemical formulae of the co...

Which of the chemical formulae of the compounds are wrong?
Brine solution: NaCl
Baking powder: `NaHCO_3`, Bleaching powder: `CaCl_2`
Gypsum: `CaSO_4. H_2O`

A

(i) and (iv)

B

(i),(ii) and (iii)

C

(ii) and (iv)

D

(ii) and (iv)

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MODERN PUBLICATION-ACID, BASES AND SALTS-EXERCISE
  1. The substance having pH more than 7 are common salt washing soda vineg...

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  2. A milkman adds a very small amount of baking soda to fresh milk. why ...

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  3. Which of the chemical formulae of the compounds are wrong? Brine solut...

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  4. The acid obtained from curd is

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  5. By dissolving metal oxide in water, we get

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  6. Which of the following acid is present in sour milk?

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  7. Which of the following is a diabasic acid?

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  8. The acid used in batteries of trucks and cars is

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  9. Which of the following salt is used as an antacid?

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  10. The basicity of CH3COOH is 4.

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  11. The main component of baking powder responsible for fluffy nature of c...

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  12. Which of the following salts does not contain water of crystallisation...

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  13. Aqueous solution of sodium chloride turns

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  14. On passing CO2 gas through a brine soluton saturated with ammonia, the...

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  15. What is the difference of water molecules in plaster of paris and gyps...

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  16. Chemical formula of gypsum is

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  17. Which of the following salts does not contain water of crystallisation...

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  18. Which of the following is not true

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  19. When black copper oxide placed in a beaker is treated with dilute HCl,...

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  20. Which of the following acidic solutions having given pH values is most...

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