1
JEE Main 2022 (Online) 25th June Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

Given below are two statements : One is labelled as Assertion A and the other is labelled as Reason R.

Assertion A : Polluted water may have a value of BOD of the order of 17 ppm.

Reason R : BOD is a measure of oxygen required to oxidise both the bio-degradable an non-biodegradable organic material in water.

In the light of the above statements, choose the most appropriate answer from the options given below.

A
Both A and R are correct and R is the correct explanation of A.
B
Both A and R are correct but R is NOT the correct explanation of A.
C
A is correct but R is not correct.
D
A is not correct but R is correct.
2
JEE Main 2022 (Online) 25th June Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R.

Assertion A : A mixture contains benzoic acid and napthalene. The pure benzoic acid can be separated out by the use of benzene.

Reason R : Benzoic acid is soluble in hot water.

In the light of the above statements, choose the most appropriate answer from the options given below.

A
Both A and R are true and R is the correct explanation of A.
B
Both A and R are true but R is NOT the correct explanation of A.
C
A is true but R is false.
D
A is false but R is true.
3
JEE Main 2022 (Online) 25th June Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

During halogen test, sodium fusion extract is boiled with concentrated HNO3 to

A
remove unreacted sodium
B
decompose cyanide or sulphide of sodium
C
extract halogen from organic compound
D
maintain the pH of extract.
4
JEE Main 2022 (Online) 25th June Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Amongst the following, the major product of the given chemical reaction is

JEE Main 2022 (Online) 25th June Evening Shift Chemistry - Compounds Containing Nitrogen Question 62 English

A
JEE Main 2022 (Online) 25th June Evening Shift Chemistry - Compounds Containing Nitrogen Question 62 English Option 1
B
JEE Main 2022 (Online) 25th June Evening Shift Chemistry - Compounds Containing Nitrogen Question 62 English Option 2
C
JEE Main 2022 (Online) 25th June Evening Shift Chemistry - Compounds Containing Nitrogen Question 62 English Option 3
D
JEE Main 2022 (Online) 25th June Evening Shift Chemistry - Compounds Containing Nitrogen Question 62 English Option 4
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