1
COMEDK 2020
MCQ (Single Correct Answer)
+1
-0

The amino acid which is not optically active is

A
glycine
B
alanine
C
serine
D
lactic acid
2
COMEDK 2020
MCQ (Single Correct Answer)
+1
-0

For a stable molecule the value of bond order must be

A
negative
B
positive
C
zero
D
there is no relationship between stability and bond order
3
COMEDK 2020
MCQ (Single Correct Answer)
+1
-0

Which one of the following is a second order reaction?

A
$$C{H_3}COOC{H_3} + NaOH\buildrel {} \over \longrightarrow C{H_3}COONa + {H_2}O$$
B
$${H_2} + C{l_2}\buildrel {Sunlight} \over \longrightarrow 2HCl$$
C
$$N{H_4}N{O_3}\buildrel {} \over \longrightarrow {N_2} + 3{H_2}O$$
D
$${H_2} + B{r_2}\buildrel {} \over \longrightarrow 2HBr$$
4
COMEDK 2020
MCQ (Single Correct Answer)
+1
-0

According to Baeyer's strain theory which is highly stable?

A
cyclohexane
B
cycloheptane
C
cyclopentane
D
cyclobutane
EXAM MAP