1
JEE Main 2023 (Online) 29th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

When a hydrocarbon A undergoes combustion in the presence of air, it requires 9.5 equivalents of oxygen and produces 3 equivalents of water. What is the molecular formula of A?

A
$$\mathrm{C_9H_6}$$
B
$$\mathrm{C_6H_6}$$
C
$$\mathrm{C_8H_6}$$
D
$$\mathrm{C_9H_9}$$
2
JEE Main 2023 (Online) 29th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

A doctor prescribed the drug Equanil to a patient. The patient was likely to have symptoms of which disease?

A
Stomach ulcers
B
Depression and hypertension
C
Anxiety and stress
D
Hyperacidity
3
JEE Main 2023 (Online) 29th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The set of correct statements is :

(i) Manganese exhibits +7 oxidation state in its oxide.

(ii) Ruthenium and Osmium exhibit +8 oxidation in their oxides.

(iii) Sc shows +4 oxidation state which is oxidizing in nature.

(iv) Cr shows oxidising nature in +6 oxidation state.

A
(ii), (iii) and (iv)
B
(ii) and (iii)
C
(i) and (iii)
D
(i), (ii) and (iv)
4
JEE Main 2023 (Online) 29th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

Match List I and List II

List I List II
A. Osmosis I. Solvent molecules pass through semi permeable membrane towards solvent side.
B. Reverse osmosis II. Movement of charged colloidal particles under the influence of applied electric potential towards oppositely charged electrodes.
C. Electro osmosis III. Solvent molecules pass through semi permeable membrane towards solution side.
D. Electrophoresis IV. Dispersion medium moves in an electric field.

Choose the correct answer from the options given below :

A
A-III, B-I, C-IV, D-II
B
A-III, B-I, C-II, D-IV
C
A-I, B-III, C-IV, D-II
D
A-I, B-III, C-II, D-IV
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