Chemistry in Everyday Life
120 Questions
2020
JEE Mains
MCQ
JEE Main 2020 (Online) 9th January Morning Slot
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 ?
A.
A : Aspartame ; B : Alitame ;
C : Saccharin ; D ; Sucralose
B.
A : Alitame ; B : Saccharin ;
C : Aspartame ; D ; Sucralose
C.
A : Aspartame ; B : Saccharin ;
C : Sucralose ; D ; Alitame
D.
A : Saccharin ; B : Alitame ;
C : Sucralose ; D ; Aspartame
2020
JEE Mains
Numerical
JEE Main 2020 (Online) 8th January Morning Slot
The number of chiral centres in penicillin is _________.
Correct Answer: 3
Explanation:
2020
JEE Mains
Numerical
JEE Main 2020 (Online) 7th January Evening Slot
The number of sp2 hybridised carbons present in "Aspartame" is
Correct Answer: 9
Explanation:
Strcuture of Aspartame is:
Number of sp2 hybridised carbon atom is = 9
Number of sp2 hybridised carbon atom is = 9
2020
JEE Mains
Numerical
JEE Main 2020 (Online) 7th January Morning Slot
The number of chiral carbons in chloramphenicol is
Correct Answer: 2
Explanation:
2020
TS-EAMCET
MCQ
TS EAMCET 2020 (Online) 14th September Evening Shift
Artificial sweetening agent from below is
A.
salvarsan
B.
sucrose
C.
chloroxylenol
D.
aspartame
2020
TS-EAMCET
MCQ
TS EAMCET 2020 (Online) 14th September Evening Shift
$ \text { The structure of paracetamol is } $
A.
B.
C.
D.
2020
TS-EAMCET
MCQ
TS EAMCET 2020 (Online) 10th September Evening Shift
Paracetamol is
A.
antiseptic drug
B.
antipyretic drug
C.
antihistamin drug
D.
antibiotic drug
$ \text { Hence, option (b) is the correct answer. } $
2020
TS-EAMCET
MCQ
TS EAMCET 2020 (Online) 10th September Morning Shift
Which among the following is an arsenic based antibiotic drug, for which Paul Ehrlich was awarded Noble prize in 1908.
A.
Salvarsan
B.
Penicillin
C.
Prontosil
D.
Sulphapyridine
2019
JEE Mains
MCQ
JEE Main 2019 (Online) 9th April Evening Slot
Noradrenaline is a/an
A.
Antacid
B.
Antihistamine
C.
Neurotransmitter
D.
Antidepressant
2019
JEE Mains
MCQ
JEE Main 2019 (Online) 11th January Evening Slot
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 |
A.
(A)$ \to $(P); (B)$ \to $(R); (C)$ \to $(Q); (D)$ \to $(S)
B.
(A)$ \to $(P); (B)$ \to $(R); (C)$ \to $(S); (D)$ \to $(Q)
C.
(A)$ \to $(R); (B)$ \to $(P); (C)$ \to $(S); (D)$ \to $(Q)
D.
(A)$ \to $(R); (B)$ \to $(P); (C)$ \to $(Q); (D)$ \to $(S)
2019
JEE Mains
MCQ
JEE Main 2019 (Online) 11th January Morning Slot
The correct match between item (I) and item (II) is :
| Item-I | Item-II | ||
|---|---|---|---|
| (A) | Norethindrone | (P) | Anti-biotic |
| (B) | Ofloxacin | (Q) | Anti-fertility |
| (C) | Equanil |
(R) | Hypertension |
| (S) | Analgesics | ||
A.
(A)$ \to $(R); (B)$ \to $(P); (C)$ \to $(R)
B.
(A)$ \to $(R); (B)$ \to $(P); (C)$ \to $(S)
C.
(A)$ \to $(Q); (B)$ \to $(P); (C)$ \to $(R)
D.
(A)$ \to $(Q); (B)$ \to $(R); (C)$ \to $(S)
2018
JEE Mains
MCQ
JEE Main 2018 (Online) 16th April Morning Slot
The correct match between items of List - I and List - II is :
| List - I | List - II | ||
|---|---|---|---|
| (A) | Phenelzine | (P) | Pyrimidine |
| (B) | Chloroxylenol | (Q) | Furan |
| (C) | Uracil | (R) | Hydrazine |
| (D) | Ranitidine | (S) | Phenol |
A.
(A) - (R), (B) - (S), (C) - (P), (D) - (Q)
B.
(A) - (s), (B) - (R), (C) - (P), (D) - (Q)
C.
(A) - (S), (B) - (R), (C) - (Q), (D) - (P)
D.
(A) - (R), (B) - (S), (C) - (Q), (D) - (P)
2017
JEE Mains
MCQ
JEE Main 2017 (Online) 8th April Morning Slot
The reason for “drug induced poisoning” is :
A.
Binding reversibly at the active site of the enzyme
B.
Bringing conformational change in the binding site of enzyme
C.
Binding irreversibly to the active site of the enzyme
D.
Binding at the allosteric sites of the enzyme
2016
JEE Mains
MCQ
JEE Main 2016 (Online) 10th April Morning Slot
Which of the following is a bactericidal antibiotic ?
A.
Erythromycin
B.
Tetracycline
C.
Chloramphenicol
D.
Ofloxacin
2016
JEE Mains
MCQ
JEE Main 2016 (Online) 9th April Morning Slot
The artificial sweetener that has the highest sweetness value in comparison to cane
sugar is :
A.
Aspartane
B.
Saccharin
C.
Sucralose
D.
Alitame
2016
JEE Mains
MCQ
JEE Main 2016 (Offline)
Which of the following is an anionic detergent ?
A.
Sodium stearate
B.
Sodium lauryl sulphate
C.
Cetyltrimethyl ammonium bromide
D.
Glyceryl oleate
2015
JEE Mains
MCQ
JEE Main 2015 (Offline)
Which of the following compounds is not an antacid?
A.
Cimetidine
B.
Ranitidine
C.
Phenelzine
D.
Aluminium hydroxide
2012
JEE Mains
MCQ
AIEEE 2012
Aspirin is known as :
A.
Acetyl salicylic acid
B.
Phenyl salicylate
C.
Acetyl salicylate
D.
Methyl salicylic acid
2005
JEE Mains
MCQ
AIEEE 2005
Which one of the following types of drugs reduces fever?
A.
Analgesic
B.
Antipyretic
C.
Antibiotic
D.
Tranquiliser
2002
JEE Mains
MCQ
AIEEE 2002
The compound
is used as
is used as
A.
antiseptic
B.
antibiotic
C.
analgesic
D.
pesticide