Chemistry Test 1

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Chemistry Test 1

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Weekly Quiz Competition

Question 1
4 / -1

Which among the following will be named as dibromidobis (ethylenediamine) chromium (III) bromide?

A
[Cr(en)₃]Br3

B
[Cr(en)₂Br₂]Br

C
[Cr(en)Br₄]^-

D
[Cr(en)Br₂]Br
Question 2
4 / -1

What is DDT among the following?

A
Green house gas

B
A fertiliser

C
Biodegradable pollutant

D
Non-biodegradable pollutant
Question 3
4 / -1

The increasing order of the ionic radii of the given isoelectronic species is

A
Cl^-, Ca²⁺, K⁺, S^2-

B
S^2-, Cr, Ca²⁺, K⁺

C
Ca²⁺, K⁺, Cl^-, S^2-

D
K⁺, S^2-, Ca²⁺, Cl^-
Question 4
4 / -1

K_f for water is 1.86 K kg mol^-1. If your automobile radiator holds 1.0 kg of water, how many grams of ethylene glycol (C₂H₆O₂) must you add to get the freezing point of the solution lowered to –2.8°C?

A
72 g

B
93 g

C
39 g

D
27 g
Question 5
4 / -1

The density of a solution prepared by dissolving 120 g of urea (mol. mass = 60 u) in 1000 g of water is 1.15 g/mL. The molarity of this solution is

A
0.50 M

B
1.78 M

C
1.02 M

D
2.05 M
Question 6
4 / -1

How many chiral compounds are possible on monochlorination of 2-methyl butane?

A
8

B
2

C
4

D
6
Question 7
4 / -1

Which of the following compounds can be detected by Molisch's test?

A
Nitro compounds

B
Sugars

C
Amines

D
Primary alcohols
Question 8
4 / -1

2-hexyne gives trans-2-hexene on treatment with

A
Pt/H₂

B
Li/NH₃

C
Pd/ BaSO₄

D
LiAIH₄

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Re-Attempt Weekly Quiz Competition

Chemistry Test 1

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Chemistry Test 1

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SHARING IS CARING

Question 1

[Cr(en)3]Br3

[Cr(en)2Br2]Br

[Cr(en)Br4]-

[Cr(en)Br2]Br

Question 2

Green house gas

A fertiliser

Biodegradable pollutant

Non-biodegradable pollutant

Question 3

Cl-, Ca2+, K+, S2-

S2-, Cr, Ca2+, K+

Ca2+, K+, Cl-, S2-

K+, S2-, Ca2+, Cl-

Question 4

72 g

93 g

39 g

27 g

Question 5

0.50 M

1.78 M

1.02 M

2.05 M

Question 6

8

2

4

6

Question 7

Nitro compounds

Sugars

Amines

Primary alcohols

Question 8

Pt/H2

Li/NH3

Pd/ BaSO4

LiAIH4

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[Cr(en)₃]Br3

[Cr(en)₂Br₂]Br

[Cr(en)Br₄]^-

[Cr(en)Br₂]Br

Cl^-, Ca²⁺, K⁺, S^2-

S^2-, Cr, Ca²⁺, K⁺

Ca²⁺, K⁺, Cl^-, S^2-

K⁺, S^2-, Ca²⁺, Cl^-

Pt/H₂

Li/NH₃

Pd/ BaSO₄

LiAIH₄