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

$$ \text { From the following pair of compounds, identify the incorrect pair in terms of the covalent character. } $$

A
$$ \mathrm{CuS}>\mathrm{CuO} $$
B
$$ \mathrm{BeCl}_2>\mathrm{MgCl}_2 $$
C
$$ \mathrm{SnCl}_4>\mathrm{SnCl}_2 $$
D
$$ A g C l>A g I $$
2
COMEDK 2024 Afternoon Shift
MCQ (Single Correct Answer)
+1
-0

Arrange the following compounds in the decreasing order of reactivity towards electrophilic substitution reaction.

(I) Chlorobenzene

(II) Nitrobenzene

(III) Benzene

(IV) Isopropylbenzene

A
$$ \text { IV }>\text { III }>\text { I }>\text { II } $$
B
$$ \mathrm{I}>\mathrm{II}>\mathrm{IV}>\mathrm{III} $$
C
$$ \mathrm{IV}>\mathrm{I}>\mathrm{II}>\mathrm{III} $$
D
$$ \mathrm{III}>\mathrm{II}>\mathrm{IV}>\mathrm{I} $$
3
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
$$ \text { (ii), (iii) and (v) } $$
4
COMEDK 2024 Afternoon Shift
MCQ (Single Correct Answer)
+1
-0

Predict the final major product 'S' of the following reaction

COMEDK 2024 Afternoon Shift Chemistry - Aldehyde and Ketone Question 5 English

A
Cyclohexane-1, 2-dione
B
Cyclohexene
C
Cyclohexane-1, 2-diol
D
Cyclohexanone
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