Questions

Q:

Oxide of which of the following will turn red litmus blue?

A) Magnesium B) Phosphorus
C) Sulphur D) Carbon
 
Answer & Explanation Answer: A) Magnesium

Explanation:
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Q:

Propyne and propene can be distinguished by

A) AgNO₃ in ammonia B) conc. H₂SO₄
C) dil. KMnO₄ D) Br₂ in CCl₄
 
Answer & Explanation Answer: A) AgNO₃ in ammonia

Explanation:

Propene, being an alkene, and propyne, being a alkyne, are distinguished using the common chemical tests namely ammoniacal silver nitrate or ammoniacal cuprous chloride. Ammoniacal silver nitrate is also called as Tollen's reagent.

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Q:

Ringworm is a disease caused by

A) Fungi B) Bacteria
C) Virus D) Flies
 
Answer & Explanation Answer: A) Fungi

Explanation:
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Q:

Which type of pathogen causes the water-borne disease Typhoid fever?

A) Algal B) Parasitic
C) Protozoan D) Bacterial
 
Answer & Explanation Answer: D) Bacterial

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Q:

The size of yes no field is always

A) 1 byte B) 1 character
C) 1GB D) 1 bit
 
Answer & Explanation Answer: D) 1 bit

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Q:

The boundary between Earth's crust and mantle is _____.

A) Moho discontinuity B) Lehman discontinuity
C) Conrad discontinuity D) Gutenberg discontinuity
 
Answer & Explanation Answer: A) Moho discontinuity

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Q:

Rio Summit is associated with

A) Convention on Biological Diversity B) Green house gases
C) Ozone depletion D) Wet lands
 
Answer & Explanation Answer: A) Convention on Biological Diversity

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Q:

Recently, the 2017 Global Hunger Index is published. What is the position of India in this index?

A) 97th B) 98th
C) 100th D) 102nd
 
Answer & Explanation Answer: C) 100th

Explanation:

India ranks 100th(last year 97thposition) out of 119 countries on the 2017 Global Hunger Index which is published by International Food Research Institute.India has “serious” hunger problems, and has third highest score in all of Asia.

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