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Showing posts with label Hydrogen. Show all posts
Showing posts with label Hydrogen. Show all posts

Thursday, 16 July 2015

Regur soil is most suitable for the cultivation of

Post 360

UPSC CAPF(AC) Exam 2015 Questions Solved

Question 80 Regur soil is most suitable for the cultivation of

A) Groundnut
B) Cotton
C) Tobacco
D) Sugarcane

Answer: B) Cotton

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Question 81 The hydrogen atoms present in acetylene molecule are

A) acidic
B) basic
C) both acidic and basic
D) neutral

Answer: B) basic

Question 82 Which one of the following compounds is NOT considered an acid?

A) BF3
B) AlCl3
C) NH3
D) C6H5OH

Answer: C6H5OH

Question 83 Which one among the following is the correct order of west flowing rivers in terms of decreasing size of their river basins?

A) Narmada —Tapi—Sabarmati—Mahi
B) Tapi —Narmada—Mahi—Sabarmati
C) Sabarmati—Narmada—Tapi—Mahi
D) Narmada —Tapi—Mahi—Sabarmati

Answer: D) Narmada —Tapi—Mahi—Sabarmati

Monday, 8 June 2015

Helium is preferred to hydrogen in airships because

Question 115 Helium is preferred to hydrogen in airships because
A. It has greater lifting power.
B. It is cheaper.
C. It does not form explosive mixtures with air.
Answer: It does not form explosive mixtures with air.
Explanation: Helium’s non-flammable nature makes it a perfect lifter gas. Hydrogen is  although lighter than helium but flammable nature of hydrogen makes it risky in airships.

Question 116 Rongker festival is celebrated in which state?
A. Sikkim
B. Assam
C. Chhattisgarh
Answer : Assam
Explanation : It is a springtime festival in Assam which is observed annually.

Question 117 वर्तमान में खाद्य एवं कृषि संस्था(FAO) में कितने राष्ट्र सदस्य है ?
Food and Agriculture Organization has how many member nations?
A. 144
B. 194
C. 184
D. 164

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