A tetra-atomic molecule (A) on reaction with nitrogen (I) oxide, produces two substances (B) and (C). (B) is a dehydrating agent while substance (C) is a diatomic gas which shows almost inert behaviour. The substances (A),(B) and (C) are

(a) A tetratomic molecule (A) on reaction with nitrogen (I) oxide, produces two substances (B) and ( C) is a dehydrating agent while substance ( C) is a diatomic gas which shows almost inert behaviour. Identify (A),(B) and ( C) . (b) Why red phosphorous is denser and chemically less reactive than while phosphorous ? ( c) Why nitrous oxide supports combustion better than air ?

AgCOP_(3) + (A) to (B) + (C ) + (D) The substances (A), (B), (C ) and (D) are

AgCOP_(3) + (A) to (B) + (C ) + (D) The substances (A), (B), (C ) and (D) are

Assertion : In the reaction Zn(s)+Cu^(2+)(aq)rarrZn^(2+)(aq)+Cu(s)Cu^(2+) ions acts as oxidising agent and Zn atoms act as a reducing agent Reason : A substance (atom, ion, or molecule) which readily gain electrons from other substances is an oxidising agent while reducing agent is a substance (atom, ion or molecule) which can lose electrons to other substances.

The gold number of three substances A , B and C are 0.05 , 0.8 and 0.3 . The substance with maximum protective power is

Two properties of four substances A, B, C and D are given in the table. Which of these substances in most likely a metal and why ?