1
NEET 2025
MCQ (Single Correct Answer)
+4
-1
Change Language

Sugar ' $X$ '

A. is found in honey

B. is a keto sugar

C. exists in $\alpha$ and $\beta$-anomeric forms.

D. Is laevorotatory.

' X ' is :

A
Maltose
B
Sucrose
C
D-Glucose
D
D-Fructose
2
NEET 2025
MCQ (Single Correct Answer)
+4
-1
Change Language

Total number of possible isomers (both structural as well as stereoisomers) of cyclic ethers of molecular formula $\mathrm{C}_4 \mathrm{H}_8 \mathrm{O}$ is :

A
10
B
11
C
6
D
8
3
NEET 2025
MCQ (Single Correct Answer)
+4
-1
Change Language

For the reaction $\mathrm{A}(\mathrm{g}) \rightleftharpoons 2 \mathrm{~B}(\mathrm{~g})$, the backward reaction rate constant is higher than the forward reaction rate constant by a factor of 2500 , at 1000 K.

[Given : $\mathrm{R}=0.0831 \mathrm{~L} \mathrm{~atm} \mathrm{~mol}^{-1} \mathrm{~K}^{-1}$ ]

$K_p$ for the reaction at $1000 K$ is

A
0.033
B
0.021
C
83.1
D
$2.077 \times 10^5$
4
NEET 2025
MCQ (Single Correct Answer)
+4
-1
Change Language

The ratio of the wavelengths of the light absorbed by a Hydrogen atom when it undergoes $n=2 \rightarrow n=3$ and $n=4 \rightarrow$ $\mathrm{n}=6$ transitions, respectively, is

A
$\frac{1}{9}$
B
$\frac{1}{4}$
C
$\frac{1}{36}$
D
$\frac{1}{16}$
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