Questions

Q:

Calcium salts used as fertilizer is:

A) Calcium Carbide B) Calcium Carbonate
C) Calcium Cyanide D) Calcium Sulphate
 
Answer & Explanation Answer: D) Calcium Sulphate

Explanation:
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3 1879
Q:

How many atoms are present in a (NH4)2SO4 molecule?

A) 15 B) 14
C) 13 D) 12
 
Answer & Explanation Answer: A) 15

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Q:

In case of a standard hydrogen electrode

A) absolute electrode potential is not zero B) absolute electrode potential is zero
C) both absolute and standard electrode potential values are zero D) electrode potential is zero only at 25 deg C
 
Answer & Explanation Answer: A) absolute electrode potential is not zero

Explanation:

The Standard hydrogen electrode (abbreviated SHE), is a redox electrode which forms the basis of the thermodynamic scale of oxidation-reduction potentials. Its absolute electrode potential is estimated to be 4.44 ± 0.02 V at 25 °C, but to form a basis for comparison with all other electrode reactions, hydrogen's standard electrode potential (E0) is declared to be zero volts only at 298.

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1 1879
Q:

What is the common name of Sodium Bicarborate?

A) Baking Soda B) Washing Powder
C) Plaster of Paris D) Fly Ash
 
Answer & Explanation Answer: A) Baking Soda

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3 1879
Q:

Who was the first batsman to be given out by a third-umpire?

A) Virat Kohli B) Graeme Smith
C) Jacques Kallis D) Sachin Tendulkar
 
Answer & Explanation Answer: D) Sachin Tendulkar

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1 1879
Q:

Each of the questions below consists of a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statements are sufficient to answer the question. What is the ratio of the length of a rectangle to the side of a square?

I. The area of the square is 576 sq cm and the area of the rectangle is 600 sq cm.

II. The breadth of the rectangle is half the side of the square.

A) The data in Statement I alone are sufficient to answer the question, while the data in Statement II alone are not sufficient to answer the question. B) The data in Statement II alone are sufficient to answer the question, while the data in Statement I alone are not sufficient to answer the question.
C) The data in either Statement I alone are in Statement II alone are sufficient to answer the question. D) The data in both the Statements I and II are not sufficient to answer the question.
 
Answer & Explanation Answer:

Explanation:

From statement I, Area of square = 576 sq cm
Side of square = 24 cm
Area of rectangle = l × b
l × b = 600 sq cm
From statement II, Suppose the breadth of the
rectangle is x. Then side of the square = 2x
Combining both the information, we have
x =12 cm
Now, l × 12 = 600

l=60012=50 cm

Required ratio = 5024=2512=25:12

Both the statements together are sufficient.

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1 1879
Q:

Read the passage carefully and choose the best answer to each question out of the four alternatives and click the button corresponding to it.

Awareness means the capacity to see a coffee pot and hear the birds sing in one's own way, and not the way one was taught. It may be assumed on good grounds that seeing and hearing have a different quality for infants than for grownups and that they are more aesthetic and less intellectual in the first years of life. A little boy sees and hears birds with delight. Then the 'good father' comes along and feels he should 'share' the experience and help his son 'develop'. He says, "That's a jay and this is a sparrow." The moment the little boy is concerned with which is a jay and which is a sparrow, he can no longer see the birds or hear them sing. He has to see and hear them the way his father wants him to. Father has good reasons on his side: since few people can afford to go through life listening to the birds sing, sooner the little boy starts his 'education' the better. Maybe he will be an ornithologist when he grows up.


What does the writer mean by 'awareness'?

A) The capacity to see as one is taught. B) The capacity to see and hear things in one's own way.
C) The ability to see and feel things as they are in the present. D) The ability to see and hear things as other people do.
 
Answer & Explanation Answer: B) The capacity to see and hear things in one's own way.

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0 1879
Q:

Improve the bracketed part of the sentence.
Would it be impolite (to be asked) why they are leaving?

A) to ask B) for asking
C) for being asked D) no improvement
 
Answer & Explanation Answer: A) to ask

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