Questions

Q:

All atoms of the same element have the same

A) number of protons B) number of electrons
C) atomic number D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

All atoms of an element have the same number of protons. The number of protons in an element is a primary identifier known as its atomic number. The number of electrons is the same as the number of protons.

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Q:

Which process is a chemical change?

A) Burning gasoline B) Boiling water
C) Evaporating water D) Melting ice
 
Answer & Explanation Answer: A) Burning gasoline

Explanation:

Burning gasoline is the only process that involving in a chemical change in the given options. A chemical change is a change in the starting substances that are called reactants from the formed new substances that are called products. 

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Q:

NaHCO3 is chemical formula for ___________.

A) Borax B) Vinegar
C) Lime D) Baking soda
 
Answer & Explanation Answer: D) Baking soda

Explanation:
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Q:

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'.
 
This year, we were visited by the director of Austrian Culture Forum, (1)/ based on Delhi and together we all wanted (2)/ to initiate an art festival in South India. (3)/ No error (4)

A) 1 B) 2
C) 3 D) 4
 
Answer & Explanation Answer: B) 2

Explanation:
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Q:

In the following question, out of the four alternatives, choose the word which best expresses the meaning of the given word and click the button corresponding to it.

INVIGORATING

A) VIBRATING B) REFRESHING
C) EXAGGERATED D) ACCELERATING
 
Answer & Explanation Answer: B) REFRESHING

Explanation:
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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.

Reporters and city officials gathered at a Chicago railroad station one afternoon in 1953. The person they were meeting was the 1952 Nobel Peace Prize winner. A few minutes after the train came to a stop, a giant of a man - six feet four inches - with bushy hair and a large moustache stepped out from the train. Cameras flashed. City officials approached him with hands outstretched. Various people began telling him how honoured they were to meet him.

The man politely thanked them and then, looking over their heads, asked if he could be excused for a moment. He quickly walked through the crowd until he reached the side of an elderly black woman who was struggling with two large suitcases. He picked up the bags with a smile, escorted the woman to a bus. After helping her aboard, he wished her a safe journey. As he returned to the greeting party he apologized, "Sorry to have kept you waiting." Not many whites would have done what he did.

The man was Dr. Albert Schweitzer, the famous missionary doctor who had spent his life helping the poor in Africa. In response to Dr. Schweitzer's action, one member of the reception committee said with great admiration to the reporter standing next to him, "That's the first time I ever saw a sermon walking."


Dr. Albert was _____ person.

A) a generous and friendly B) a proud
C) a timid D) a kind and helpful
 
Answer & Explanation Answer: D) a kind and helpful

Explanation:
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Q:

In the following question, out of the four alternatives, select the word similar in meaning to the word given.

Piquancy

A) Bland B) Flavouring
C) Insipid D) Tedious
 
Answer & Explanation Answer: B) Flavouring

Explanation:
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Q:

In the following question, out of the four alternatives, select the alternative which is the best substitute of the phrase.

To officially register as a member of an institution

A) to muster B) to enrol
C) to institutionalize D) to officiate
 
Answer & Explanation Answer: B) to enrol

Explanation:
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