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1

JEE Main 2019 (Online) 11th January Evening Slot

MCQ (Single Correct Answer)
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)

Explanation

Allosteric effect $$ \to $$ Molecule binding to a site other than the active site of enzyme

Competitive inhibitor $$ \to $$ Molecule binding to the active site of enzyme

Receptor $$ \to $$ Molecule crucial for communication in the body

Poison $$ \to $$ Molecule binding to the enzyme covalently
2

JEE Main 2019 (Online) 11th January Morning Slot

MCQ (Single Correct Answer)
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)

Explanation

(A) Norethindrone - Antifertility

(B) Ofloaxacin - Anti-Biotic

(C) Equanil - Hypertension (traiquilizer)
3

JEE Main 2018 (Online) 16th April Morning Slot

MCQ (Single Correct Answer)
English
Hindi
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)

Explanation

सूची - I तथा सूची - II के मदों (items) के मध्य सही सुमेल है :

सूची I सूची II
(A) फिनेल्जीन 1. पिरिमिडीन
(B) क्लोरोक्सीलेनॉल 2. फ्यूरैन
(C) युरैसिल 3. हाइड्राज़ीन
(D) रैनिटिडीन 4. फिनॉल

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)
4

JEE Main 2017 (Online) 8th April Morning Slot

MCQ (Single Correct Answer)
English
Hindi
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

Explanation

Some drugs acts as allosteric effectors. They can cause large changes in enzymatic activity by binding with a site other than the active site. This other site is also called an allosteric site. When it causes a decrease in enzyme activity, the effector molecules are called allosteric inhibitors.

औषध-प्रेरित विषाक्तीकरण का कारण है :

A
एन्जाइम की सक्रिय सतह पर उत्क्रमणीय संयोजन
B
एन्जाइम की बंधनी सतह में संरूपीय परिवर्तन
C
एन्जाइम की सक्रिय सतह पर अनुत्क्रमणीय संयोजन
D
एन्जाइम की एलोस्टीरिक सतहों पर संयोजन

Questions Asked from Chemistry in Everyday Life

On those following papers in MCQ (Single Correct Answer)
Number in Brackets after Paper Indicates No. of Questions
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JEE Main 2022 (Online) 28th July Morning Shift (1)
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JEE Main 2022 (Online) 26th July Evening Shift (1)
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JEE Main 2022 (Online) 25th July Morning Shift (1)
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JEE Main 2022 (Online) 29th June Evening Shift (1)
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JEE Main 2021 (Online) 27th August Morning Shift (1)
JEE Main 2021 (Online) 26th August Evening Shift (1)
JEE Main 2021 (Online) 27th July Evening Shift (1)
JEE Main 2021 (Online) 27th July Morning Shift (2)
JEE Main 2021 (Online) 25th July Morning Shift (1)
JEE Main 2021 (Online) 22th July Evening Shift (1)
JEE Main 2021 (Online) 20th July Morning Shift (1)
JEE Main 2021 (Online) 18th March Evening Shift (1)
JEE Main 2021 (Online) 18th March Morning Shift (1)
JEE Main 2021 (Online) 17th March Evening Shift (1)
JEE Main 2021 (Online) 17th March Morning Shift (1)
JEE Main 2021 (Online) 16th March Morning Shift (2)
JEE Main 2021 (Online) 26th February Morning Shift (1)
JEE Main 2021 (Online) 25th February Evening Shift (1)
JEE Main 2021 (Online) 24th February Evening Shift (2)
JEE Main 2020 (Online) 6th September Evening Slot (1)
JEE Main 2020 (Online) 5th September Evening Slot (1)
JEE Main 2020 (Online) 5th September Morning Slot (1)
JEE Main 2020 (Online) 4th September Evening Slot (1)
JEE Main 2020 (Online) 3rd September Evening Slot (1)
JEE Main 2020 (Online) 3rd September Morning Slot (2)
JEE Main 2020 (Online) 2nd September Evening Slot (1)
JEE Main 2020 (Online) 9th January Morning Slot (1)
JEE Main 2020 (Online) 7th January Morning Slot (1)
JEE Main 2019 (Online) 9th April Evening Slot (1)
JEE Main 2019 (Online) 11th January Evening Slot (1)
JEE Main 2019 (Online) 11th January Morning Slot (1)
JEE Main 2018 (Online) 16th April Morning Slot (1)
JEE Main 2017 (Online) 8th April Morning Slot (1)
JEE Main 2016 (Online) 10th April Morning Slot (1)
JEE Main 2016 (Online) 9th April Morning Slot (1)
JEE Main 2016 (Offline) (1)
JEE Main 2015 (Offline) (1)
AIEEE 2012 (1)
AIEEE 2005 (1)
AIEEE 2003 (1)
AIEEE 2002 (1)

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