Questions 501–510 of 1235. Imported answers require independent review unless marked reviewed.

Topic practice 1235 questionsPage 51 of 124

Question 13

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Which among the following metal ions has the highest enthalpy of hydration? (Assume the given metal ions have the same counter ion.) Given: Atomic numbers of Ti, V, Cr and Mn are 22, 23, 24 and 25, respectively.
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Question 14

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Among the following, the one having smallest bond angle is
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Question 15

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Which of the following is the CORRECT statement about hexoses?
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Question 16

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The bases present in DNA are
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Question 17

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The CORRECT order of basicity for the following compounds is
Diagram for Life Sciences question 17

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Question 18

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Molar conductance of monobasic acid at infinite dilution is calculated to be

at 25 °C. The value of

is (round off to the nearest integer)
Given:
Electrolyte
Limiting molar conductance at 25 °C in


427.95

151.64

112.72
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Question 19

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A sample of benzene, contaminated with a non-volatile and non-ionic solute, boils at 0.31°C higher than that of pure benzene. The molality of the solute in the contaminated solution is _____ (round off to two decimal places).
Given: Gas constant =

Molecular weight of benzene is

Normal boiling point of benzene is

Enthalpy of vaporization of benzene is


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Question 20

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Among the following statements about cobalt complexes, which is/are CORRECT?
Given: Atomic number of Co is 27
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Question 21

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Consider the following reaction:
Diagram for Life Sciences question 21

The CORRECT statement(s) related to mono-chlorination at carbon-2 position is/are
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Question 22

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Consider the following enzyme catalyzed reaction:
Diagram for Life Sciences question 22

where E is enzyme, S is substrate, ES is enzyme-substrate complex and P is product.
The CORRECT statement(s) for the above reaction is/are
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