AIIMS MBBS Entrance Test 2019 Chemistry Paper with Answer & Solutions 26 May First Shift Part 5

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Q-64: In processing of steel which of the following allotropes of carbon is used.

Options:

(1) Carbon black

(2) Charcoal

(3) Coke

(4) Graph ones

Answer: (3)

Solution:

Coke is used in processing of steel

Q-65:

Assertion; configuration is more stable than

Reason: has more exchange energy as compared to because exchanges are possible in respectively.

Answer: (1)

Solution:

Configuration having more symmetry and exchange energy in comparison of configuration.

Q-66: Which of the following is incorrect about cyanogen gas?

Options:

(1) It has bent structure

(2) It is psuedohalogen.

(3) Its behavior is similar to halides.

(4) Both carbon are hybridised

Answer: (1)

Solution:

Cyanogen gas is sp hybridised having linear geometry.

Q-67: Assertion: is used to detect.

Reason: In the oxidation number of.

Answer: (2)

Solution:

Q-68: Which of the following complex is optically inactive?

Options:

(1)

(2)

(3)

(4)

Answer: (1)

Solution:

is inactive as it is square planer complex.

Q-69: Correct increasing order for the wavelength of absorption in the visible region for the complexes of is:

Options:

(1)

(2)

(3)

(4) ,

Answer: (1)

Solution:

Strength of ligands attached with is in the order of so order of splitting will be in the same order.

Wave length absorbing light

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