1
COMEDK 2024 Evening Shift
MCQ (Single Correct Answer)
+1
-0

Given are 4 statements related to the chemical properties of Glucose.

Identify the two incorrect statements from the following.

A. It reacts with $$\mathrm{Br}_2$$ (aq) to form Saccharic acid.

B. Reacts with Acetic anhydride to form Glucose tetraacetate.

C. Reacts with Hydroxylamine to give Glucose oxime.

D. It reacts with ammoniacal $$\mathrm{AgNO}_3$$ to form ammonium salt of Gluconic acid with deposition of silver.

A
A & B
B
C & D
C
B & D
D
A & C
2
COMEDK 2024 Evening Shift
MCQ (Single Correct Answer)
+1
-0

Two statements, Assertion and Reason are given. Choose the correct option from the following.

Assertion: In the secondary structure of RNA, double helix structure is formed.

Reason: In the double structure of RNA, two nucleic acid chains are wound about each other and held together by hydrogen bonds between pairs of bases

A
Assertion is correct but Reason is incorrect.
B
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
C
Assertion is incorrect but Reason is correct.
D
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
3
COMEDK 2024 Evening Shift
MCQ (Single Correct Answer)
+1
-0

Match the Vitamins given in Column I with the diseases caused by their deficiency as given in Column II.

Vitamin Deficiency
(A) K (P) Cheilosis
(B) B$$_12$$ (Q) Osteomalacia
(C) B$$_2$$ (R) Permicious Anaemia
(D) D (S) Haemophilia

A
$$ A-S \quad B-R \quad C-P \quad D-Q $$
B
$$ A-Q \quad B-P \quad C-S \quad D-R $$
C
$$ \mathrm{A}-\mathrm{S} \quad \mathrm{B}-\mathrm{R} \quad \mathrm{C}-\mathrm{Q} \quad \mathrm{D}-\mathrm{P} $$
D
$$ \mathrm{A}-\mathrm{P} \quad \mathrm{B}-\mathrm{S} \quad \mathrm{C}-\mathrm{Q} \quad \mathrm{D}-\mathrm{R} $$
4
COMEDK 2024 Afternoon Shift
MCQ (Single Correct Answer)
+1
-0

With reference to vitamins and its deficiency diseases, the correct statements are:

(i) Cheilosis is due to the deficiency of Riboflavin

(ii) The deficiency of Vitamin B6 causes pernicious anaemia

(iii) Osteomalacia is due to the deficiency of Vitamin E

(iv) The deficiency of ascorbic acid causes scurvy

(v) The deficiency of Vitamin A causes xerophthalmia

A
$$ \text { (i), (iii) and (v) } $$
B
$$ \text { (i), (ii) and (iv) } $$
C
$$ \text { (i), (iv) and (v) } $$
D
$$ \text { (ii), (iii) and (v) } $$
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