Chemistry Test 128

Result

Chemistry Test 128

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Weekly Quiz Competition

Question 1
4 / -1

Directions For Questions

The electronic configuration of four elements are:

(A) [Xe] 6s¹ (B) [Xe] 4f¹⁴5d¹6s²

(C) [Ar] 3d¹⁰ 4s²4p⁵ (D) [Ar] 3d⁷ 4s²

...view full instructions

Which one of the following statement about these elements is not correct?

A
A is a strong reducing agent

B
B is d-block element

C
C has high electron affinity

D
D shows variable oxidation state
Question 2
4 / -1

Which of the following give propyne on hydrolysis?

A
Al₄C₃

B
CCl₄

C
CaC₂

D
Mg₂C₃

Solution

Mg₂C₃ + H₂O → Mg(OH)₂ + C₃H₄
Question 3
4 / -1

Which is a polar molecule :-

A
SF₄

B
SiF₄

C
XeF₄

D
BF₃

Solution

For SF₄ dipole moment ≠ 0 (1 L.P. is present)

So polar
Question 4
4 / -1

Which of the following is coloured and paramagnetic oxide :-

A
RbO₂

B
PbO₂

C
BaO₂

D
CO₂

Solution

RbO₂ superoxide have one unpaired el^–.
Question 5
4 / -1

Hydrogen gas produced by heating NaOH with which metal :-

A
Ag

B
Cu

C
Zn

D
Au
Question 6
4 / -1

Which of the following compound do not show tautomerism :-

A

B

C

D

Solution
Question 7
4 / -1

The product (A) formed in the following reaction

(A) major Product

A

B

C

D
Question 8
4 / -1

Which of following compound will not show geometrical isomerism ?

A

B

C

D
Question 9
4 / -1

Which technique is use to separate glycerol from spent lye in soap industry ?

A
Steam distillation

B
Reduced pressure distillation

C
Crystallisation

D
Fractional distillation

Solution

fact.
Question 10
4 / -1

(major)

Here the product formed is ?

A

B

C

D

Solution

Rate of ESR α +I +M group on Benzene