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1
JEE Main 2023 (Online) 11th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
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Alkali metal from the following with least melting point is :

A
$$\mathrm{Rb}$$
B
$$\mathrm{Na}$$
C
$$\mathrm{K}$$
D
$$\mathrm{Cs}$$
2
JEE Main 2023 (Online) 11th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
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Match List-I with List-II:

List - I List - II
A. K I. Thermonuclear reactions
B. KCl II. Fertilizer
C. KOH III. Sodium potassium pump
D. Li IV. Absorbent of CO$$_2$$

Choose the correct answer from the options given below :

A
A-IV, B-III, C-I, D-II
B
A-III, B-II, C-IV, D-I
C
A-III, B-IV, C-II, D-I
D
A-IV, B-I, C-III, D-II
3
JEE Main 2023 (Online) 10th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
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The correct order of metallic character is :

A
K > Be > Ca
B
Ca > K > Be
C
K > Ca > Be
D
Be > Ca > K
4
JEE Main 2023 (Online) 10th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

Number of water molecules in washing soda and soda ash respectively are :

A
1 and 0
B
10 and 1
C
1 and 10
D
10 and 0
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