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

KH value for some gases at the same temperature 'T' are given :

Gas K$$_H$$/k bar
Ar 40.3
CO$$_2$$ 1.67
HCHO 1.83 $$\times$$ 10$$^{ - 5}$$
CH$$_4$$ 0.413

where KH is Henry's Law constant in water. The order of their solubility in water is :

A
HCHO < CH4 < CO2 < Ar
B
Ar < CO2 < CH4 < HCHO
C
Ar < CH4 < CO2 < HCHO
D
HCHO < CO2 < CH4 < Ar
2
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1

Which of the following reactions is a decomposition redox reaction?

A
P4(s) + 3OH$$-$$(aq) + 3H2O(l) $$\to$$ PH3(g) + 3H2PO$$_2^ - $$(aq)
B
2Pb(NO3)2(s) $$\to$$ 2PbO(s) + 4NO2(g) + O2(g)
C
N2(g) + O2(g) $$\to$$ 2NO(g)
D
Cl2(g) + 2OH$$-$$(aq) $$\to$$ ClO$$-$$(aq) + Cl$$-$$(aq) + 4H2O(l)
3
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1

What is the hybridization shown by C1 and C2 carbons, respectively in the given compound?

OHC $$-$$ CH = CH $$-$$ CH2COOCH3

A
sp3 and sp3
B
sp2 and sp3
C
sp2 and sp2
D
sp3 and sp2
4
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1

Match the reagents (List-I) with the product (List-II) obtained from phenol.

List-I
List-II
(a) (i) NaOH (ii) CO$$_2$$ (iii) H$$^ + $$ (i) Benzoquinone
(b) (i) Aqueous NaOH + CHCl$$_3$$ (ii) H$$^ + $$ (ii) Benzene
(c) Zn dust, $$\Delta$$ (iii) Salicyl aldehyde
(d) Na$$_2$$Cr$$_2$$O$$_7$$, H$$_2$$SO$$_4$$ (iv) Salicylic acid

Choose the correct answer from the options given below :

A
(a) - (iv), (b) - (ii), (c) - (i), (d) - (iii)
B
(a) - (iii), (b) - (iv), (c) - (i), (d) - (ii)
C
(a) - (ii), (b) - (i), (c) - (iv), (d) - (iii)
D
(a) - (iv), (b) - (iii), (c) - (ii), (d) - (i)
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