Chemistry Test 114

Result

Chemistry Test 114

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Weekly Quiz Competition

Question 1
4 / -1

In dilute alkaline solution, MnO₄^– oxideses I^– to :-

A
I₂

B
I₃^–

C
IO₃^–

D
None of these

Solution
Question 2
4 / -1

Chloro compound of vanadium has only spin magnetic moment of 1.73 BM. This vanadium chloride has the formula :- (at no. of V = 23)

A
VCl₄

B
VCl₃

C
VCl₂

D
VCl₅

Solution

VCl₄, 3d¹

0.5(V) = +4

1-unpaired electron

µ = √1(3) = 1.73 BM
Question 3
4 / -1

Which of the following is strongest oxidising agent ?

A

B

C

D
Question 4
4 / -1

In weak alkaline solution KMnO₄ change to:-

A
MnO₄^–2

B
MnO₂

C
MnO

D
Mn₂O₃
Question 5
4 / -1

Identify the ion which Exhibits d-d transition and Paramagnetism as well?

A
MnO₄^2–

B
CrO₄^2–

C
Cr₂O₇^2–

D
MnO₄^–

Solution

MnO₄^–2

Mn has +6 O.S.

d¹ is paramagnetic shows d-d transition
Question 6
4 / -1

The yellow colour solution of Na₂CrO₄ changes to orange red on passing CO₂ gas due to the formation of :-

A
CrO₅

B
CrO₃

C
Na₂Cr₂O₇

D
Cr₂O₃

Solution

Na₂CrO₄ Na₂Cr₂O₇
yellow orange
Question 7
4 / -1

K₂Cr₂O₇ is orange coloured compound. Its orange colour is due to :-

A
K⁺

B
Cr₂O₇^2–

C
Both

D
None
Question 8
4 / -1

The donar sites of [EDTA]^–4 are :-

A
O atoms only

B
N atoms only

C
Two N atoms and four O atoms

D
Three N atoms and three O atoms
Question 9
4 / -1

Which of the following is not considered as an organometallic compound?

A
Ferrocene

B
cis-platin

C
Zeise's salt

D
Grignard reagent

Solution
Question 10
4 / -1

Which of the following can not act as a ligand :-

A
NH₃

B
NH₄⁺

C
N₂H₄

D
N₂H₅⁺

Solution