1
MHT CET 2021 20th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

If vapour pressure of pure solvent and solution are 240 and 216 mm Hg respectively then mole fraction of solvent in solution is

A
0.9
B
0.1
C
0.6
D
0.4
2
MHT CET 2021 20th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

Identify an orbital with the quantum numbers n = 4, $$l$$ = 3, m = 0.

A
4f
B
4p
C
4s
D
4d
3
MHT CET 2021 20th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

The pH of 0.1 M solution of monobasic acid is 2.34. Calculate the degree of dissociation of the acid.

A
$$3.1\times10^{-2}$$
B
$$4.5\times10^{-2}$$
C
$$2.18\times10^{-2}$$
D
$$2.5\times10^{-3}$$
4
MHT CET 2021 20th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

Calculate change in enthalpy when 39 g acetylene is completely burnt with oxygen and enthalpy of combustion of acetylene is $$-$$1300 kJ/mol.

(At. mass C = 12, H = 1)

A
$$-$$975 kJ
B
$$-$$650 kJ
C
$$-$$1950 kJ
D
$$-$$1600 kJ
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