This chapter is currently out of syllabus
1
JEE Main 2020 (Online) 9th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
A chemist has 4 samples of artificial sweetener
A, B, C and D. To identify these samples, he
performed certain experiments and noted the
following observations :
(i) A and D both form blue-violet colour with ninhydrin.
(ii) Lassaigne extract of C gives positive AgNO3 test and negative Fe4[Fe(CN)6]3 test.
(iii) Lassaigne extract of B and D gives positive sodium nitroprusside test
Based on these observations which option is correct ?
(i) A and D both form blue-violet colour with ninhydrin.
(ii) Lassaigne extract of C gives positive AgNO3 test and negative Fe4[Fe(CN)6]3 test.
(iii) Lassaigne extract of B and D gives positive sodium nitroprusside test
Based on these observations which option is correct ?
2
JEE Main 2019 (Online) 9th April Evening Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Noradrenaline is a/an
3
JEE Main 2019 (Online) 11th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
The correct match between Item I and Item II is :
Item I | Item II | ||
---|---|---|---|
(A) | Allosteric effect | (P) | Molecule binding to the active site of enzyme |
(B) | Competitive inhibitor | (Q) | Molecule crucial for communication in the body |
(C) | Receptor |
(R) | Molecule binding to a site other than the active site of enzyme |
(D) | Poison | (S) | Molecule binding to the enzyme covalently |
4
JEE Main 2019 (Online) 11th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
The correct match between item (I) and item (II) is :
Item-I | Item-II | ||
---|---|---|---|
(A) | Norethindrone | (P) | Anti-biotic |
(B) | Ofloxacin | (Q) | Anti-fertility |
(C) | Equanil |
(R) | Hypertension |
(S) | Analgesics |
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