Chemistry (2016) | Study Mode

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Question 31
A
3
B
2
C
4
D
5
Explanation

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Correct option: C
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Question 32
A
Calcium Chloride
B
Calcium Oxide
C
Phosphorus(V) Oxide
D
Concentrated H2SO4
Explanation

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Correct option: B
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Question 33
A
X-rays
B
\(\beta\)-rays
C
\(\alpha\)-rays
D
\(\gamma\)-rays
Explanation

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Correct option: A
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Question 34
A
PH3 CO and CO2
B
CO and C
C
N2 CO and CO2
D
PH3 and CO
Explanation

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Correct option: A
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Question 35
A
Blue
B
Red
C
Orange
D
Purple
Explanation

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Correct option: C
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Question 36
A
Butter
B
Hair cream
C
Milk
D
Cod-liver oil
Explanation

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Correct option: A
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Question 37
A
16
B
15
C
31
D
46
Explanation

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Correct option: B
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Question 38
A
0.056dm3
B
0.224dm3
C
224.000dm3
D
56.000dm3
Explanation
Q = 193 x 5 = 965C
40H \(\mapsto\) 2H2O + O2 + 4e
4 x 96500C = 22.4dm3
965C = x

x = \(\frac{22.4 \times 965}{4 \times 96500}\)
= 0.056dm3

Correct option: A
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Question 39
A
Neon
B
Radon
C
Xenon
D
Argon
Explanation

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Correct option: B
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Question 40
A
A reversible reaction
B
A spontenous reaction
C
An endothermic reaction
D
An exothermic reaction
Explanation

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Correct option: B

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