Question

ANSWER ONLY IF U KNOW THE FULL ANSWERS. OR ELSE U R ANSWER WILL BE REPORTED!

1. Name the gas evolved when:

(a) Concentrated Sulphuric acid acts on Sulphur

2 . State the colour change you would observe on adding concentrated Sulphuric acid to:

(a) Blue Copper sulphate crystals

(b) Colourless cane-sugar crystals

Answer 1

1)(A) SO2
2)(a)blue CuSO4 crystals will turn white
(b)the colorless cane sugar crystals get charred I.e. they will turn black


Hope it helps ya

Answer 2

a) Sulphur dioxide.
2.
a) blue crystals will change to white amorphous powder.
b) colourless sugar cane crystals will change to a black porous mass of carbon.

# Hope it helps.
# A student of class 10.