Question

21) (CLASS 10 D AND E)
14. First element of Modern periodic table reacts with the third element of p - block elements, fc
a compound X which is a pungent smelling gas. X when dissolved in water forms Y which
changes the colour of Litmus . Identify X, Y and change in colour of litmus
(1 Point)
AO X-Ammonia gas. Y - Ammonium hydroxide, changes red litmus blue
BO x - Phosphine gas , Y - Phosphoric acid, changes blue litmus red
CO x - Hydrogen sulphide gas. Y - Sulphuric acid, changes blue litmus red
DO X - Methane gas. Y - Methanoic acid, changes blue litmus red
ilm hanana and rose in context with vegetative​

Answer 1

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Answer 2

Answer:

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