1
KCET 2026
MCQ (Single Correct Answer)
+1
-0
The number of chain isomers possible for the hydrocarbon with molecular formula $\text{C}_5\text{H}_{12}$ is
A
$4$
B
$3$
C
$2$
D
$1$
2
KCET 2026
MCQ (Single Correct Answer)
+1
-0
Statement-I: Nitrogen in pyridine cannot be estimated by Kjeldahl's method.
Statement-II: Nitrogen in pyridine changes to ammonium sulphate when heated with conc. $\text{H}_2\text{SO}_4$ in Kjeldahl's method.
Read the above given statements and choose the correct answer from the given options.
A
Statement I is true but Statement II is false
B
Both Statement I and Statement II are false
C
Both Statement I and Statement II are true
D
Statement I is false but Statement II is true
3
KCET 2026
MCQ (Single Correct Answer)
+1
-0
The intermediates in heteropolar reactions are
A
Free radicals only
B
Cations only
C
Anions only
D
Both anions and cations
4
KCET 2026
MCQ (Single Correct Answer)
+1
-0
The relative lowering of vapour pressure produced by dissolving $18$ g of urea (Molar mass $= 60\text{ g mol}^{-1}$) in $100$ g of water is
A
$0.025$
B
$0.512$
C
$0.051$
D
$0.250$