1
JEE Main 2023 (Online) 25th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

Match List I with List II

List I (Name of polymer) List II (Uses)
A. Glyptal I. Flexible pipes
B. Neoprene II. Synthetic wool
C. Acrilan III. Paints and Lacquers
D. LDP IV. Gaskets

Choose the correct answer from the options given below :

A
A-III, B-I, C-IV, D-II
B
A-III, B-IV, C-I, D-II
C
A-III, B-II, C-IV, D-I
D
A-III, B-IV, C-II, D-I
2
JEE Main 2023 (Online) 25th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The isomeric deuterated bromide with molecular formula $$\mathrm{C_4H_8DBr}$$ having two chiral carbon atoms is

A
2 - Bromo - 1 - deuterobutane
B
2 - Bromo - 1 - deutero - 2 - methylpropane
C
2 - Bromo - 3 - deuterobutane
D
2 - Bromo - 2 - deuterobutane
3
JEE Main 2023 (Online) 25th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

Given below are two statements :

Statement I : In froth floatation method of rotating paddle agitates the mixture to drive air out of it.

Statement II : Iron pyrites and generally avoided for extraction of iron due to environmental reasons.

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

A
Statement I is true but Statement II is false
B
Statement I is false but Statement II is true
C
Both Statement I and Statement II are true
D
Both Statement I and Statement II are false
4
JEE Main 2023 (Online) 25th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

Match List I with List II

List I List II
A. Cobalt catalyst I. $$\mathrm{(H_2+Cl_2)}$$ production
B. Syngas II. Water gas production
C. Nickel catalyst III. Coal gasification
D. Brine solution IV. Methanol production

Choose the correct answer from the options given below :

A
A-IV, B-III, C-I, D-II
B
A-IV, B-III, C-II, D-I
C
A-II, B-III, C-IV, D-I
D
A-IV, B-I, C-II, D-III
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