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Nature of Oxides

Statement 1: ...

Question

Statement 1: The formula of calcium oxide is ${Ca}_{2} O_{2}$ .
Statement 2: Valency of both calcium and oxygen is 2.

A

Both the statements are true.

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B

Only statement 1 is true.

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C

Both the statements are false.

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D

Only statement 2 is true.

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Solution

The correct option is D Only statement 2 is true.
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Similar questions

Q. Statement 1 (S1): The valencies of calcium and bromide ions are 1 and 2 respectively.
Statement 2 (S2): The chemical formula of the compound formed by one calcium and two bromide ions is

C a B r_{2}

.

Q. Using the example of calcium chloride explain how the formulae of compounds are derived (given that the valency of calcium is 2 and that of chlorine is 1).

Q. When 5 g of calcium is burnt in 2 g of oxygen, then 7 g of calcium oxide is produced. What mass of calcium oxide will be produced when 5 g of calcium is burnt in 20 g of oxygen?

The formula of Calcium oxide is ${Ca}_{2} O_{2}$ .

Q. The valency of

Z n

is 2 and the valency of oxygen is also 2. Construct the formula for zinc oxide.

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