1
NEET 2026
MCQ (Single Correct Answer)
+4
-1
Change Language

At a certain temperature, $\mathrm{T}(\mathrm{K})$, during a process, 500 J is absorbed by the system and work of 200 J is done by the system. Then change in internal energy of the system is :

A

400 J

B

300 J

C

700 J

D

500 J

2
NEET 2026
MCQ (Single Correct Answer)
+4
-1
Change Language

For a certain reaction $R \rightarrow$ Product, the plot of concentration $[R]$ vs time has a negative slope as shown. The order of reaction is :

NEET 2026 Chemistry - Chemical Kinetics Question 1 English
A

0

B

1

C

2

D

2.5

3
NEET 2026
MCQ (Single Correct Answer)
+4
-1
Change Language

Identify the correct statement about $\mathrm{CIF}_3$ from the following options :

A

It has T-shaped geometry with two lone pairs on Cl atom.

B

It has T-shaped geometry with three lone pairs on Cl atom.

C

It has a trigonal pyramidal geometry with two lone pairs on Cl atom.

D

It has a planar trigonal geometry with two lone pairs on Cl atom.

4
NEET 2026
MCQ (Single Correct Answer)
+4
-1
Change Language

In a test tube containing a salt, a few drops of dilute $\mathrm{H}_2 \mathrm{SO}_4$ was added, which gave colourless vapours having the smell of vinegar. The vapours turned the blue litmus paper red.

Identify the correct anion from the following :

A

Sulphide, $\mathrm{S}^{2-}$

B

Sulphate, $\mathrm{SO}_4^{2-}$

C

Acetate, $\mathrm{CH}_3 \mathrm{COO}^{-}$

D

Carbonate, $\mathrm{CO}_3^{2-}$