Questions 61–70 of 394. Imported answers require independent review unless marked reviewed.

Topic practice 394 questionsPage 7 of 40

Question 44

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In the following asymmetric transformation, the key aldol reaction involves the attack of
Diagram for Chemistry question 44

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Question 45

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The correct option with regard to the following statements is
(a) Time-independent Schrödinger equation can be exactly solved for Be

.
(b) For a particle confined in a one-dimensional box of length

with infinite potential barriers, the trial variation function

is not an acceptable trial wavefunction for

.
(c) Wavefunctions for system of Fermions must be anti-symmetric with respect to exchange of any two Fermions in the system.
(d) Born-Oppenheimer approximation can be used to separate the vibrational and rotational motion of a molecule.
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Question 46

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The phase diagram of a single component system is given below.
Diagram for Chemistry question 46

The option with the correct number of degrees of freedom corresponding to the labelled points i, j, and k, respectively, is
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Question 1

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If ‘→’ denotes increasing order of intensity, then the meaning of the words [sick → infirm → moribund] is analogous to [silly → ______ → daft]. Which one of the given options is appropriate to fill the blank?
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Question 2

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The 15 parts of the given figure are to be painted such that no two adjacent parts with shared boundaries (excluding corners) have the same color. The minimum number of colors required is
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Question 3

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How many 4-digit positive integers divisible by 3 can be formed using only the digits , such that no digit appears more than once in a number?
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Question 4

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The sum of the following infinite series is

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Question 5

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In an election, the share of valid votes received by the four candidates A, B, C, and D is represented by the pie chart shown. The total number of votes cast in the election were 1,15,000, out of which 5,000 were invalid.
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Based on the data provided, the total number of valid votes received by the candidates B and C is
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Question 6

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Thousands of years ago, some people began dairy farming. This coincided with a number of mutations in a particular gene that resulted in these people developing the ability to digest dairy milk.
Based on the given passage, which of the following can be inferred?
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Question 7

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The probability of a boy or a girl being born is 1/2. For a family having only three children, what is the probability of having two girls and one boy?
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