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1
JEE Main 2021 (Online) 20th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Metallic sodium does not react normally with :
A
gaseous ammonia
B
But-2-yne
C
Ethyne
D
tert-butyl alcohol
2
JEE Main 2021 (Online) 17th March Evening Shift
MCQ (Single Correct Answer)
+4
-1
Choose the correct statement regarding the formation of carbocations A and B given.

JEE Main 2021 (Online) 17th March Evening Shift Chemistry - Haloalkanes and Haloarenes Question 23 English
A
Carbocation A is more stable and formed relatively at faster rate
B
Carbocation B is more stable and formed relatively at slow rate
C
Carbocation B is more stable and formed relatively at faster rate
D
Carbocation A is more stable and formed relatively at slow rate
3
JEE Main 2021 (Online) 17th March Evening Shift
MCQ (Single Correct Answer)
+4
-1
The correct pair(s) of the ambident nucleophiles is(are)

(A) AgCN/KCN

(B) RCOOAg/RCOOK

(C) AgNO2/KNO2

(D) AgI/KI
A
(B) and (C) only
B
(B) only
C
(A) and (C) only
D
(A) only
4
JEE Main 2021 (Online) 17th March Morning Shift
MCQ (Single Correct Answer)
+4
-1
JEE Main 2021 (Online) 17th March Morning Shift Chemistry - Haloalkanes and Haloarenes Question 26 English
The above reaction requires which of the following reaction conditions?
A
623 K, Cu, 300 atm
B
623 K, 300 atm
C
573 K, 300 atm
D
573 K, Cu, 300 atm
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