Common Admission Test (CAT) Questions and Answers with Explanation

Q:

Is B2+ Paramagnetic or Diamagnetic?

Answer

B2+ is a Paramagnetic.

The filled orbitals are $σ$ (1s) $^{2}$ , $σ^{*}$ (1s) $^{2}$ , $σ$ (2s) $^{2}$ , $σ^{*}$ (2s) $^{2}$ . The half-filled orbitals are $π$ (2p $_{x}$ ) and $π$ (2p $_{y}$ ). Since it posses 2 unpaired electrons, it is Paramagnetic in nature.

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Q:

In a class of 50 students M is eighth from top. H is 20th from bottom. How many students are there between M and H?

A) 22	B) 23
C) 24	D) can't be determined

Answer & Explanation Answer: A) 22

Explanation:

M is 8th from the top.

H is (50 - 20 + 1 =) 31 st from the top.

Number of students between M and H = (31 - 8- 1=)22

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Q:

Refer the below data table and answer the following question.

What is the average bonus in Rs. ?

A) 606154	B) 7880002
C) 253333	D) 224000

Answer & Explanation Answer: A) 606154

Explanation:

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Q:

A train running at the speed of 40 km/hr crosses a signal pole in 9 seconds. Find the length of the train ?

A) 90 mts	B) 150 mts
C) 120 mts	D) 100 mts

Answer & Explanation Answer: D) 100 mts

Explanation:

We know that $S p e e d = \frac{d i s \tan c e}{t i m e}$

distance= speed * time

$\Rightarrow$ $d = (40 \times \frac{5}{18}) \times 9$

d= 100 mts.

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Q:

First Bank to introduce Credit Card in India

A) HSBC Bank	B) ICICI Bank
C) State Bank of India	D) Central Bank of India

Answer & Explanation Answer: D) Central Bank of India

Explanation:

First Bank to introduce Credit Card in India - Central Bank of India

First Bank to introduce ATM - HSBC, 1987

First Bank to introduce Internet Banking - ICICI Bank

First Bank to introduce Mutual Funds - State Bank of India

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Q:

Paper currency first started in India in _____ ?

A) 1542	B) 1601
C) 1861	D) 1880

Answer & Explanation Answer: C) 1861

Explanation:

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Q:

Find the ratio of the areas of the incircle and circumcircle of a square ?

A) 1 : 4	B) 4 : 1
C) 2 : 1	D) 1 : 2

Answer & Explanation Answer: D) 1 : 2

Explanation:

Let the side of the square be x. Then, its diagonal = $\sqrt{2} x$ .

Radius of incircle = x/2 and radius of circumcircle = $\frac{\sqrt{2} x}{2}$ . k11482389216.png image

Therefore, required ratio = $(\frac{{πx}^{2}}{4} : \frac{{πx}^{2}}{2})$ = $\frac{1}{4} : \frac{1}{2} = 1 : 2$

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Q:

Countries that have same name as their capital cities?

Answer

Countries have the same name as their capital cities are ::

Andorra,

Djibouti,

Guatemala,

Kuwait,

Luxembourg,

Mexico,

Monaco,

Panama,

San Marino,

Singapore,

and

Vatican City.

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