Questions

Q:

The absolute refractive index of air is

A) 1.03 B) 1.00003
C) 1.003 D) 1.0003
 
Answer & Explanation Answer: D) 1.0003

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Q:

Which of the following statement(s) is/are INCORRECT regarding Phosphorus?

A) Phosphorus reacts vigorously with water B) It is a non-metal
C) It catches fire on reacting with air D) It is found in group 15 of the modern periodic table
 
Answer & Explanation Answer: A) Phosphorus reacts vigorously with water

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Filed Under: Chemistry
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Q:

Evaporation of water from leaves of a plant is called

A) Transpiration B) Respiration
C) Perspiration D) Evaporation
 
Answer & Explanation Answer: A) Transpiration

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Filed Under: Biology
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Q:

Which blood group is universal donor?

A) O+ B) O–
C) AB– D) AB+
 
Answer & Explanation Answer: B) O–

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Filed Under: Biology
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Q:

Which organ of human body secretes Insulin?

A) Pancreas B) Kidney
C) Gall bladder D) Liver
 
Answer & Explanation Answer: A) Pancreas

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Filed Under: Biology
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Q:

Which State has the longest coastline?

A) Andhra Pradesh B) Maharashtra
C) Gujarat D) Karnataka
 
Answer & Explanation Answer: C) Gujarat

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Filed Under: Indian Geography
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Q:

Atomic number of which of the following elements is greater than that of Calcium?

A) Chlorine B) Argon
C) Sulphur D) Scandium
 
Answer & Explanation Answer: D) Scandium

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Q:

Who invented the thermos flask?

A) Ray Tomlinson B) Tim Berners-Lee
C) William Cullen D) James Dewar
 
Answer & Explanation Answer: D) James Dewar

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Filed Under: Inventions
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