Q:

A ball is thrown vertically upwards. Assuming the air resistance to be constant and cosiderable:

A) the time of ascent < the time of descent	B) the time of ascent > the time of descent
C) the time of ascent = the time of descent	D) none of these

Answer & Explanation Answer: A) the time of ascent < the time of descent

Explanation:

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Filed Under: Physics

42 9660

Q:

Ethylene glycol is used as an antifreeze in a cold climate. Mass of ethylene glycol which should be added to 4 kg of water to prevent it from freezing at –6°C will be: (Kf for water = 1.86 Kg/mol and molar mass of ethylene glycol = 62 kg/mol)

A) 204.60 g	B) 304.30 g
C) 804.32 g	D) 400.00 g

Answer & Explanation Answer: C) 804.32 g

Explanation:

$∆ T_{f} = k_{f} . m$

for ethylene glycol in aq. solution

$∆ T_{f} = k_{f} \frac{w}{m o l . w t} \times \frac{1000}{w t . o f s o l v e n t} 6 = \frac{1.86 x w x 1000}{62 x 4000}$

=> w = 800 g

So, the weight of solute should be more than 800 g.

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Filed Under: Chemistry
Exam Prep: AIEEE

8 9643

Q:

Orlon is a polymer of

A) Dacron	B) Acrylonitrile
C) Polyamide Nylon	D) None of the above

Answer & Explanation Answer: B) Acrylonitrile

Explanation:

The monomeric unit of orlon polymer is Acrylonitrile. Orlon is also known as Polyacrylonitrile (PAN).

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Filed Under: Chemistry
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

19 9641

Q:

The leading state in producing paper is

A) Kerala	B) Odisha
C) Bihar	D) West Bengal

Answer & Explanation Answer: D) West Bengal

Explanation:

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Filed Under: Indian Geography
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

20 9635

Q:

In a face centred cubic lattice, atom A occupies the corner positions and atom B occupies the face centre positions. If one atom of B is missing from one of the face centred points, the formula of the compound is

1) $A_{2} B_{5}$

2) $A_{3} B_{2}$

3) $A_{2} B_{3}$

4) $A_{3} B_{4}$

A) Option 1	B) Option 2
C) Option 3	D) Option 4

Answer & Explanation Answer: A) Option 1

Explanation:

$Z_{A} = \frac{8}{8}$ ; $Z_{B} = \frac{5}{2}$

So formula of compound is $A B_{\frac{5}{2}}$

i.e., $A_{2} B_{5}$ .

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Filed Under: Chemistry
Exam Prep: AIEEE

13 9634

Q:

The concept of Economic planning in India is derived from ________.

A) Russia	B) Australia
C) USA	D) UK

Answer & Explanation Answer: A) Russia

Explanation:

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Filed Under: Indian Economy
Exam Prep: Bank Exams , CAT
Job Role: Bank Clerk

20 9629

Q:

The Tripitaka was written in

A) Brahmi	B) Kharosthi
C) Pali	D) Sanskrit

Answer & Explanation Answer: C) Pali

Explanation:

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Filed Under: Indian History

12 9627

Q:

When does fog usually form in inlets and bays?

Answer

Fog will form if the air temperature drops below the dew point, which is the capacity of the air to hold moisture in suspension. If the temperature drop far enough the moisture content will exceed saturation point, causing it to form visible water vapour.

It happens in the early mornings or late after noons.

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Subject: Indian Geography Exam Prep: AIEEE , Bank Exams
Job Role: Analyst , Bank Clerk , Bank PO

5 9623

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