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

During Lassaigne's test, the elements present in an organic compound are converted from :

A

Ionic form to ionic form

B

Covalent form to ionic form

C

Covalent form to covalent form

D

Ionic form to covalent form

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

A solution of copper sulphate is electrolysed for 10 minutes with a current of 1.5 amperes. The mass of copper deposited at cathode is :

(Given : Molar mass of $\mathrm{Cu}=63 \mathrm{~g} \mathrm{~mol}^{-1}$;

$$ \left.1 \mathrm{~F}=96487 \mathrm{C} \mathrm{~mol}^{-1}\right) $$

A

1.7018 g

B

0.2938 g

C

2.4036 g

D

0.5876 g

3
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

4
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