Question

18. When lead nitrate crystals are heated
Test tube holder
Boiling tube
Lead nitrate
Burner
(a) a colourless gas is evolved and a yellow residue's
left behind
(b) a brown gas is evolved and a white residue is lent
behind
(c) a greenish yellow gas is evolved and a brown
residue is left behind
(d) a brown gas is evolved and a yellow residue is lett
behind.​

Answer 1

Answer:

(A) A Colourless gas is evolved when a yellow Residue is left Behind.

Hope it helps you.

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Answer 2

Answer:

A) a colourless gas is evolved and a yellow residue's

left behind

Explanation:

because PbO is yellow and NO2 is colourless