AIIMS MBBS Entrance Test 2019 Chemistry Paper with Answer & Solutions 25 May Second Shift Part 3

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Q-46: Which of the following statement is correct for oleum?

(1) It is prepared by adsorption of in conc.

(2) It contains groups

(3) I has six groups

(4) None of these

Answer: (1)

Solution:

Structure of oleum (pyrosulphuric acid)

Q-47: how much spectral line of balmer series present in visible region:

Options:

(1) 5

(2) 4

(3) 2

(4) 3

Answer: (2)

Q-48: For a first order gas phase reaction:

be initial pressure of A and Pt the total pressure at time‘t’. Integrated rate equation is:

Options:

(1)

(2)

(3)

(4)

Total pressure at time

Q-49:

Assertion: Out of having lower melting point than.

Reason: Oxidation state of in is high

Answer: (2)

Solution:

Both Assertion and reason are correct but reason is not correct explanation of assertion.

Q-50: Out of which has maximum solubility:

Options:

(1)

(2)

(3)

(4)

Answer: (1)

Solution:

Order of solubility

Has highest solubility as have high hydration energy

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