Physical Chemistry
Some Basic Concepts of Chemistry
MCQ (Single Correct Answer)
Chemical Equilibrium
MCQ (Single Correct Answer)
Inorganic Chemistry
Periodic Table and Periodicity
MCQ (Single Correct Answer)
Chemical Bonding and Molecular Structure
MCQ (Single Correct Answer)
Hydrogen and It's Compounds
MCQ (Single Correct Answer)
d and f Block Elements
MCQ (Single Correct Answer)
Coordination Compounds
MCQ (Single Correct Answer)
Environmental Chemistry
MCQ (Single Correct Answer)
Organic Chemistry
IUPAC Nomenclatures
MCQ (Single Correct Answer)
General Organic Chemistry
MCQ (Single Correct Answer)
Haloalkanes and Haloarenes
MCQ (Single Correct Answer)
Alcohol, Phenols and Ethers
MCQ (Single Correct Answer)
Aldehyde and Ketone
MCQ (Single Correct Answer)
Carboxylic Acids and Its Derivatives
MCQ (Single Correct Answer)
Compounds Containing Nitrogen
MCQ (Single Correct Answer)
Chemistry in Everyday Life
MCQ (Single Correct Answer)
1
KCET 2019
MCQ (Single Correct Answer)
+1
-0

Which of the following is least soluble in water at $$298 \mathrm{~K}$$ ?

A
$$\mathrm{CH}_3 \mathrm{NH}_2$$
B
$$\left(\mathrm{CH}_3\right)_3 \mathrm{N}$$
C
$$\left(\mathrm{CH}_3\right)_2 \mathrm{NH}$$
D
$$\mathrm{C}_6 \mathrm{H}_5 \mathrm{NH}_2$$
2
KCET 2019
MCQ (Single Correct Answer)
+1
-0

If aniline is treated with $$1: 1$$ mixture of conc. $$\mathrm{HNO}_3$$ and conc. $$\mathrm{H}_2 \mathrm{SO}_4$$, p-nitroaniline and $$m$$-nitroaniline are formed nearly in equal amounts. This is due to

A
$$m$$-directing property of $$-\mathrm{NH}_2$$ group
B
protonation of $$-\mathrm{NH}_2$$ which causes deactivation of benzene ring
C
$$m$$ and $$p$$ directing property of $$-\mathrm{NH}_2$$ group
D
isomerisation of some $$p$$-nitroaniline into $$m$$-nitroaniline
3
KCET 2018
MCQ (Single Correct Answer)
+1
-0
During the fusion of organic compound with sodium metal, nitrogen present in the organic compound is converted into
A
$\mathrm{NaNO}_2$
B
$\mathrm{NaNH}_2$
C
NaCN
D
NaNC
4
KCET 2018
MCQ (Single Correct Answer)
+1
-0
Which of the following will be the most stable diazonium salt $\left(R \mathrm{~N}_2^{+} \mathrm{X}^{-}\right)$?
A
$\mathrm{CH}_3 \mathrm{~N}_2^{+} \mathrm{X}^{-}$
B
$\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{~N}_2^{+} \mathrm{X}^{-}$
C
$\mathrm{C}_6 \mathrm{H}_5 \mathrm{~N}_2^{+} X^{-}$
D
$\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_2 \mathrm{~N}_2^{+} \mathrm{X}^{-}$
KCET Subjects