Questions

Q:

CuO + H2 ---> Cu + H2O. This equation is an example of

A) Oxidation B) Decomposition
C) Reduction D) Redox
 
Answer & Explanation Answer: D) Redox

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Q:

_____ is the fourth state of matter.

A) Plasma B) Steam
C) Gas D) Matteroid
 
Answer & Explanation Answer: A) Plasma

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Q:

Other name of Platelets is?

A) Leucocytes B) Erythrocytes
C) Platelets D) Thrombocytes
 
Answer & Explanation Answer: D) Thrombocytes

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Q:

In each of the following choose the word most nearly opposite in meaning to the word given in capitals.

“DEROGATORY”

A) Conferred B) Immediate
C) Praising D) Private
 
Answer & Explanation Answer: C) Praising

Explanation:

Derogatory means showing a critical or disrespectful attitude and, Praising means express warm approval. Both words are opposite in nature.

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Q:

What is an endothermic reaction?

A) Reaction in which heat is released. B) Reaction in which heat is absorbed.
C) Reaction in which neither heat is released nor absorbed. D) None of these
 
Answer & Explanation Answer: B) Reaction in which heat is absorbed.

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Q:

The chemical formula of Propane is

A) C3H8 B) C4H10
C) C2H6 D) CH4
 
Answer & Explanation Answer: A) C3H8

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Q:

Meter in a vehicle that calculates distance covered by the vehicle is called __________.

A) Speedometer B) Odometer
C) Thermometer D) Kilometre
 
Answer & Explanation Answer: B) Odometer

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Filed Under: Physics
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Q:

If a ball is thrown vertically upwards with a velocity of 40 m/s, then what will be the magnitude of its displacement after 6 s?

A) 80 m B) 40 m
C) 60 m D) 20 m
 
Answer & Explanation Answer: C) 60 m

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