77 An element A reacts with water to form compound B which is used in white washing. The compound B on heating, forms an oxide C, which in treatment, gives back B. Identify A, B and C and give the chemical reactions involved.

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Q. An element

A

reacts with water to form a compound

B

which is used in white washing. The compound

B

on heating forms an oxide

C

which on treatment with water gives back

B

. Elements

B

and

C

are :

Question 53
An element A reacts with water to form a compound B which is used in whitewashing. The compound B on heating forms an oxide C which on treatment with water gives back B. Identify A, B and C and give the reactions involved.

Question 53
An element A reacts with water to form a compound B which is used in whitewashing. The compound B on heating forms an oxide C which on treatment with water gives back B. Identify A, B and C and give the reactions involved.

A gas a ' X' reacts with lime water and forms a compound Y which is used as a bleaching agent in chemical industry. Identify X and Y .Give the chemical equation of the reactions involved.

Q. An monovalent metal A gives a compound B (molecular mass = 40) on reacting with water. The compound B gives a soluble compound C on treatment with aluminium oxide. Identify A, B and C and give the reaction involved.

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