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1
JEE Main 2023 (Online) 12th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

Match List I with List II

LIST I
Type of Hydride
LIST II
Example
A. Electron deficient hydride I. $$\mathrm{MgH_2}$$
B. Electron rich hydride II. $$\mathrm{HF}$$
C. Electron precise hydride III. $$\mathrm{B_2H_6}$$
D. Saline hydride IV. $$\mathrm{CH_4}$$

Choose the correct answer from the options given below:

A
A-III, B-II, C-I, D-IV
B
A-II, B-III, C-I, D-IV
C
A-III, B-II, C-IV, D-I
D
A-II, B-III, C-IV, D-I
2
JEE Main 2023 (Online) 11th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
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Which hydride among the following is less stable?

A
NH$$_3$$
B
HF
C
LiH
D
BeH$$_2$$
3
JEE Main 2023 (Online) 11th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

Given below are two statements:

Statement-I : Methane and steam passed over a heated $$\mathrm{Ni}$$ catalyst produces hydrogen gas.

Statement-II : Sodium nitrite reacts with $$\mathrm{NH}_{4} \mathrm{Cl}$$ to give $$\mathrm{H}_{2} \mathrm{O}, \mathrm{N}_{2}$$ and $$\mathrm{NaCl}$$.

In the light of the above statements, choose the most appropriate answer from the options given below :

A
Statement I is correct but Statement II is incorrect
B
Both the statements I and II are incorrect
C
Both the statements I and II are correct
D
Statement I is incorrect but Statement II is correct
4
JEE Main 2023 (Online) 10th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
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Given below are two statements: one is labelled as Assertion $$\mathbf{A}$$ and the other is labelled as Reason $$\mathbf{R}$$

Assertion A : Physical properties of isotopes of hydrogen are different.

Reason R : Mass difference between isotopes of hydrogen is very large.

In the light of the above statements, choose the correct answer from the options given below:

A
$$\mathbf{A}$$ is true but $$\mathbf{R}$$ is false
B
Both $$\mathbf{A}$$ and $$\mathbf{R}$$ are true but $$\mathbf{R}$$ is NOT the correct explanation of $$\mathbf{A}$$
C
$$\mathbf{A}$$ is false but $$\mathbf{R}$$ is true
D
Both $$\mathbf{A}$$ and $$\mathbf{R}$$ are true and $$\mathrm{R}$$ is the correct explanation of $$\mathbf{A}$$
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