1
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1

Which of the following reactions is a part of the large scale industrial preparation of nitric acid?

A
Cu(NO3)2 + 2NO2 + 2H2O $$\mathrel{\mathop{\kern0pt\longrightarrow} \limits_{\mathrm{500\,K,\,9\,bar}}^{\mathrm{Pt}}} $$ 4HNO3 + Cu
B
NaNO3 + H2SO4 $$\mathrel{\mathop{\kern0pt\longrightarrow} \limits_{\mathrm{500\,K,\,9\,bar}}^{\mathrm{Pt}}} $$ NaHSO4 + HNO3
C
4NH3 + 5O2 (from air) $$\mathrel{\mathop{\kern0pt\longrightarrow} \limits_{\mathrm{500\,K,\,9\,bar}}^{\mathrm{Pt}}} $$ 4NO + 6H2O
D
4HPO3 + 2N2O5 $$\mathrel{\mathop{\kern0pt\longrightarrow} \limits_{\mathrm{500\,K,\,9\,bar}}^{\mathrm{Pt}}} $$ 4HNO3 + P4O10
2
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1

Na2B4O7 $$\buildrel {heat} \over \longrightarrow $$ X + NaBO2

in the above reaction the product "X" is :

A
NaB3O5
B
H3BO3
C
B2O3
D
Na2B2O5
3
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1

Match List-I with List-II.

List - I
(Hydrides)
List - II
(Nature)
(a) MgH$$_2$$ (i) Electron precise
(b) GeH$$_4$$ (ii) Electron deficient
(c) B$$_2$$H$$_6$$ (iii) Electron rich
(d) HF (iv) Ionic

Choose the correct answer from the options given below:

A
(a) - (iv), (b) - (i), (c) - (ii), (d) - (iii)
B
(a) - (iii), (b) - (i), (c) - (ii), (d) - (iv)
C
(a) - (i), (b) - (ii), (c) - (iv), (d) - (iii)
D
(a) - (ii), (b) - (iii), (c) - (iv), (d) - (i)
4
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1

Which of the following statement is not correct about diborane?

A
There are two 3-centre-2-eletron bonds.
B
The four terminal B-H bonds are two centre two electron bonds.
C
The four terminal Hydrogen atoms and the two Boron atoms lie in one plane.
D
Both the Boron atoms are sp2 hybridised.
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