1
JEE Main 2020 (Online) 6th September Evening Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Reaction of an inorganic sulphite X with dilute H2SO4 generates compound Y. Reaction of Y with NaOH gives X. Further, the reaction of X with Y and water affords compound Z. Y and Z, respectively, are :
A
S and Na2SO3
B
SO2 and NaHSO3
C
SO2 and Na2SO3
D
SO3 and NaHSO3
2
JEE Main 2020 (Online) 6th September Evening Slot
MCQ (Single Correct Answer)
+4
-1
Which of the following compounds can be prepared in good yield by Gabriel phthalimide synthesis?
A
JEE Main 2020 (Online) 6th September Evening Slot Chemistry - Compounds Containing Nitrogen Question 126 English Option 1
B
JEE Main 2020 (Online) 6th September Evening Slot Chemistry - Compounds Containing Nitrogen Question 126 English Option 2
C
JEE Main 2020 (Online) 6th September Evening Slot Chemistry - Compounds Containing Nitrogen Question 126 English Option 3
D
CH3—CH2—NHCH3
3
JEE Main 2020 (Online) 6th September Evening Slot
MCQ (Single Correct Answer)
+4
-1
Mischmetal is an alloy consisting mainly of :
A
lanthanoid and actinoid metals
B
actinoid and transition metals
C
lanthanoid metals
D
actinoid metals
4
JEE Main 2020 (Online) 6th September Evening Slot
MCQ (Single Correct Answer)
+4
-1
The average molar mass of chlorine is 35.5 g mol–1. The ratio of 35Cl to 37Cl in naturally occuring chlorine is close to :
A
1 : 1
B
2 : 1
C
3 : 1
D
4 : 1
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