1
JEE Main 2021 (Online) 22th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
Sulphide ion is soft base and its ores are common for metals.

(a) Pb (b) Al (c) Ag (d) Mg
A
(a) and (c) only
B
(a) and (d) only
C
(a) and (b) only
D
(c) and (d) only
2
JEE Main 2021 (Online) 22th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
An organic compound A (C6H6O) gives dark green colouration with ferric chloride. On treatment with CHCl3 and KOH, followed by acidification gives compound B. Compound B can also be obtained from compound C on reaction with pyridinium chlorochromate (PCC). Identify A, B and C.
A
JEE Main 2021 (Online) 22th July Evening Shift Chemistry - Alcohols, Phenols and Ethers Question 91 English Option 1
B
JEE Main 2021 (Online) 22th July Evening Shift Chemistry - Alcohols, Phenols and Ethers Question 91 English Option 2
C
JEE Main 2021 (Online) 22th July Evening Shift Chemistry - Alcohols, Phenols and Ethers Question 91 English Option 3
D
JEE Main 2021 (Online) 22th July Evening Shift Chemistry - Alcohols, Phenols and Ethers Question 91 English Option 4
3
JEE Main 2021 (Online) 22th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Which one of the following reactions does not occur?
A
JEE Main 2021 (Online) 22th July Evening Shift Chemistry - Compounds Containing Nitrogen Question 112 English Option 1
B
JEE Main 2021 (Online) 22th July Evening Shift Chemistry - Compounds Containing Nitrogen Question 112 English Option 2
C
JEE Main 2021 (Online) 22th July Evening Shift Chemistry - Compounds Containing Nitrogen Question 112 English Option 3
D
JEE Main 2021 (Online) 22th July Evening Shift Chemistry - Compounds Containing Nitrogen Question 112 English Option 4
4
JEE Main 2021 (Online) 22th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Which one of the following 0.06 M aqueous solutions has lowest freezing point?
A
Al2(SO4)3
B
C6H12O6
C
KI
D
K2SO4
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