Chemistry - Online Test
Q1. With respect to the position
of –Cl in the compound CH3– CH
= CH – CH2 – Cl, it is classified
as
Answer : Option B
Explaination / Solution:
No Explaination.
Q2. In
which of the following options the order of arrangement does not agree with the
variation of property indicated against it?
Answer : Option A
Explaination / Solution:
No Explaination.
Q3. Haemoglobin of the blood forms carboxy haemoglobin with
Answer : Option C
Explaination / Solution:
No Explaination.
Q4. Ionic
hydrides are formed by
Answer : Option D
Explaination / Solution:
eg
: Sodium hydride (Na+ H–)
Q5. Which
of the following has the highest tendency to give the reaction M+(g) --Aqueous
---Medium → M+(aq)
Answer : Option B
Explaination / Solution:
hydration
energy of Li+ is more and hence Li+ is stabilized in
aqueous medium.
Q6. When
an ideal gas undergoes unrestrained expansion, no cooling occurs because the
molecules
Answer : Option B
Explaination / Solution:
No Explaination.
Q7.
The formation of ammonia from N2(g) and H2(g)
is a reversible reaction
N2(g) + 3H2(g) ⇌ 2NH3(g) + Heat
Answer : Option C
Explaination / Solution:
Increase in temperature, favours the endothermic reaction,
Given that formation of NH3 is exothermic ie.,
the reverse reaction is endothermic.
∴ increase
in temperature, shift the equilibrium to left option (c)
Q8. In
a reversible process, the change in entropy of the universe is
Answer : Option D
Explaination / Solution:
No Explaination.
Q9. The
partial pressure of nitrogen in air is 0.76 atm and its Henry's law constant is
7.6 × 104 atm at 300K. What is the molefraction of nitrogen gas in
the solution obtained when air is bubbled through water at 300K ?
Answer : Option D
Explaination / Solution:
PN2= 0.76 atm
KH = 7.6 × 104
x = ?
PN2 = KH . x
0.76 = 7.6 × 104 × x
so x = 0.76 / [7.6 x104] = 1x10-5
Q10. Which
of the following molecule contain no л bond?
Answer : Option D
Explaination / Solution:
water contain only σ bonds and no π bonds option
