1
NEET 2021
MCQ (Single Correct Answer)
+4
-1
The molar conductivity of 0.007 M acetic acid is 20 S cm2 mol$$-$$1. What is the dissociation constant of acetic acid? Choose the correct option.

[$$\Lambda _{{H^ + }}^o$$ = 350 S cm2 mol$$-$$1

$$\Lambda _{C{H_3}CO{O^ - }}^o$$ = 50 S cm2 mol$$-$$1]
A
2.50 $$\times$$ 10$$-$$5 mol L$$-$$1
B
1.75 $$\times$$ 10$$-$$4 mol L$$-$$1
C
2.50 $$\times$$ 10$$-$$4 mol L$$-$$1
D
1.75 $$\times$$ 10$$-$$5 mol L$$-$$1
2
NEET 2021
MCQ (Single Correct Answer)
+4
-1
Which of the following molecules is non-polar in nature?
A
NO2
B
POCl3
C
CH2O
D
SbCl5
3
NEET 2021
MCQ (Single Correct Answer)
+4
-1
Match List-I with List-II :

List-I List-II
(a) $${[Fe{(CN)_6}]^{3 - }}$$ (i) 5.92 BM
(b) $${[Fe{({H_2}O)_6}]^{3 + }}$$ (ii) 0 BM
(c) $${[Fe{(CN)_6}]^{4 - }}$$
(iii) 4.90 BM
(d) $${[Fe{({H_2}O)_6}]^{2 + }}$$
(iv) 1.73 BM


Choose the correct answer from the options given below.
A
(a)-(iv), (b)-(i), (c)-(ii), (d)-(iii)
B
(a)-(iv), (b)-(ii), (c)-(i), (d)-(iii)
C
(a)-(ii), (b)-(iv), (c)-(iii), (d)-(i)
D
(a)-(i), (b)-(iii), (c)-(iv), (d)-(ii)
4
NEET 2021
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Choose the correct option for the total pressure (in atm.) in a mixture of 4g O2 and 2g H2 confined in a total volume of one litre at 0$$^\circ$$C is :

[Given R = 0.082 L atm mol$$-$$1K$$-$$1, T = 273 K]
A
26.02
B
2.518
C
2.602
D
25.18
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