1
KCET 2023
MCQ (Single Correct Answer)
+1
-0

In the reaction,

KCET 2023 Chemistry - Compounds Containing Nitrogen Question 14 English

P, Q and R respectively are

A
$$\mathrm{NaNO}_2+$$ dil. $$\mathrm{HCl}, \mathrm{HBF}_4, \mathrm{Cu}+\mathrm{NaNO}_2$$
B
$$\mathrm{NaNO}_2+$$ conc. $$\mathrm{HCl}, \mathrm{F}_2, \mathrm{Cu}+\mathrm{NaNO}_3$$
C
$$\mathrm{NaNO}_2+$$ dil. $$\mathrm{HCl}, \mathrm{BF}_3, \mathrm{Cu}+\mathrm{NaNO}_2$$
D
$$\mathrm{NaNO}_2+$$ dil. $$\mathrm{HCl}, \mathrm{F}_2, \mathrm{Cu}+\mathrm{NaNO}_3$$
2
KCET 2022
MCQ (Single Correct Answer)
+1
-0

Identify the products $$A$$ and $$B$$ in the reactions :

$$\begin{aligned} & R-X+\mathrm{AgCN} \longrightarrow A+\mathrm{Ag} X \\ & R-X+\mathrm{KCN} \longrightarrow B+\mathrm{KX} \end{aligned}$$

A
$$A=R C N ; B=R N C$$
B
$$A=R N C ; B=R C N$$
C
$$A=R N C ; B=R N C$$
D
$$A=R-\mathrm{CN} ; B=R \mathrm{CN}$$
3
KCET 2022
MCQ (Single Correct Answer)
+1
-0

In carbylamine test for primary amines the resulting foul smelling product is

A
$$\mathrm{CH}_3 \mathrm{CN}$$
B
$$\mathrm{CH}_3 \mathrm{NC}$$
C
$$\mathrm{COCl}_2$$
D
$$\mathrm{CH}_3 \mathrm{NCl}_2$$
4
KCET 2022
MCQ (Single Correct Answer)
+1
-0

A secondary amine is

A
a compound with two carbon atoms and an $$\mathrm{NH}_2$$ group
B
a compound with an $$\mathrm{NH}_2$$ group on the carbon atom in number 2 position
C
a compound in which 2 of the hydrogen of $$\mathrm{NH}_3$$ have been replaced by organic group
D
an organic compound with two $$\mathrm{NH}_2$$ groups
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