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Published on: 28/05/2021
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Questions + Answers key
Take MCQ Chemistry Test1.
Which statement is wrong for NO?
It is anhydride of nitrous acid
Its dipole moment is 0.22 D
It forms dimer
It is paramagnetic
2.
The reddish brown coloured gas formed when nitric oxide is oxidised by air is
N2O5
N2O4
NO2
N2O3
3.
The gases produced in the reaction, Pb(NO3)2 \(\overset{\triangle}{\longrightarrow}\) and NH4NO3 \(\overset{\triangle}{\longrightarrow}\) are respectively
N2O, NO
N2O, NO2
NO, NO2
NO2,N2O
4.
With excess of CI2, ammonia forms
nitrogen
nitrosyl chloride
ammonium chloride
nitrogen trichloride
5.
An inorganic salt (A) is decomposed on heating to give two products (B) and (C). Compound (C) is a liquid at room temperature and is neutral to litmus while compound (B) is a colourless neutral gas. Compounds (A), (B) and (C) are
NH4NO3, N2O,H2O
NH4NO2,NO,H2O
CaO, HO, CaCI 2O, CaCI2
Ba(NO3)2, H2O, NO2
Mg(NO3)2, N2O5, H2O
1.
(a)
It is anhydride of nitrous acid
2.
(c)
NO2
3.
(d)
NO2,N2O
4.
(d)
nitrogen trichloride
5.
(a)
NH4NO3, N2O,H2O
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