1
MCQ (Single Correct Answer)

NEET 2016 Phase 1

The product obtained as a result of a reaction of nitrogen with CaC2 is
A
CaCN2
B
Ca2CN
C
Ca(CN)2
D
CaCN

Explanation

CaC2 + N2 $$ \to $$ CaCN2 + C
2
MCQ (Single Correct Answer)

NEET 2016 Phase 2

In context with beryllium, which one of the following statements is incorrect?
A
It is rendered passive by nitric acid.
B
It forms Be2C
C
Its salts rarely hydrolyze.
D
Its hydride is electron-deficient and polymeric.

Explanation

Beryllium salts are readily hydrolysed.
3
MCQ (Single Correct Answer)

NEET 2016 Phase 2

The suspension of slaked lime in water is known as
A
lime water
B
quick lime
C
milk of lime
D
aqueous solution of slaked lime.

Explanation



This process is known as slaking of lime.

The paste of lime in water (suspension) is called milk of lime while the filtered and clear solution is known as lime water.
4
MCQ (Single Correct Answer)

AIPMT 2015 Cancelled Paper

Solubility of the alkaline earth metal sulphates in water decreases in the sequence
A
Sr > Ca > Mg > Ba
B
Ba > Mg > Sr > Ca
C
Mg > Ca > Sr > Ba
D
Ca > Sr > Ba > Mg

Explanation

Solubility of alkaline earth metal sulphates decreases down the group because hydration energy decreases.

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