1
JEE Main 2023 (Online) 24th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The primary and secondary valencies of cobalt respectively in $$\mathrm{[Co(NH_3)_5Cl]Cl_2}$$ are :

A
2 and 8
B
2 and 6
C
3 and 5
D
3 and 6
2
JEE Main 2023 (Online) 24th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

'A' and 'B' formed in the following set of reactions are :

JEE Main 2023 (Online) 24th January Morning Shift Chemistry - Alcohols, Phenols and Ethers Question 40 English

A
JEE Main 2023 (Online) 24th January Morning Shift Chemistry - Alcohols, Phenols and Ethers Question 40 English Option 1
B
JEE Main 2023 (Online) 24th January Morning Shift Chemistry - Alcohols, Phenols and Ethers Question 40 English Option 2
C
JEE Main 2023 (Online) 24th January Morning Shift Chemistry - Alcohols, Phenols and Ethers Question 40 English Option 3
D
JEE Main 2023 (Online) 24th January Morning Shift Chemistry - Alcohols, Phenols and Ethers Question 40 English Option 4
3
JEE Main 2023 (Online) 24th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Decreasing order of the hydrogen bonding in following forms of water is correctly represented by

A. Liquid water

B. Ice

C. Impure water

Choose the correct answer from the options given below :

A
A = B > C
B
B > A > C
C
A > B > C
D
C > B > A
4
JEE Main 2023 (Online) 24th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Assertion A : Hydrolysis of an alkyl chloride is a slow reaction but in the presence of NaI, the rate of the hydrolysis increases.

Reason R : I$$^{-}$$ is a good nucleophile as well as a good leaving group.

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

A
A is true but R is false
B
A is false but R is true
C
Both A and R are true and R is the correct explanation of A
D
Both A and R are true but R is NOT the correct explanation of A
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