Previous year MCQs

General science UPPSC 2010 GS-I
Question

Which one of the following silver salts is used for producing artificial rains?

Answer & Solution

Answer: (Detailed Solution Below)

Option D: Silver iodide

Detailed Solution:

The correct answer is “Silver iodide”.
Silver iodide (AgI) is the silver salt used to produce artificial rain through cloud seeding.

Similar Questions:

Match list-I with list-II and select the correct answer using the code given below the lists:
List-I (molecules) - List-II (elements present)

A. Vitamin B12 - 1. Magnesium
B. Haemoglobin - 2. Cobalt
C. Chlorophyll - 3. Copper
D. Brass - 4. Iron

Code:
A B C D
  1. A) 2 4 1 3
  2. B) 2 1 3 4
  3. C) 4 1 2 3
  4. D) 3 4 2 1
In electric apparatus 'earth' is used:
  1. A) to reduce the expenditure
  2. B) because the apparatus used 3-phase
  3. C) for safety
  4. D) in the form of fuse
The micro-organism which is associated with the production of Bt cotton is a:
  1. A) Fungus
  2. B) Bacterium
  3. C) Blue green Alga
  4. D) Virus
A can finish a work in 6 days whereas B can finish the work in 9 days. If both of them work together, what is the probability that the work will be finished on third day?
  1. A) 1/2
  2. B) 1/6
  3. C) 1
  4. D) 0
Ultrasonics are sound waves of frequency:
  1. A) Greater than 20, 000 Hz
  2. B) Less than 10, 000 Hz
  3. C) Equal to 1000 Hz
  4. D) None of these
Match List-I with List-II and select the correct answer from the codes given below the lists:
List-I List-II

A. Article 14 - 1. Amendment Procedure
B. Article 36 - 2. Council of Ministers
C. Article 74 - 3. Right to Equality
D. Article 368 - 4. Directive Principles

Codes:
A B C C
  1. A) 2 1 4 3
  2. B) 4 1 3 2
  3. C) 1 2 3 4
  4. D) 3 4 2 1
Hydrogen bomb is based on the principle of
  1. A) Controlled fusion reaction
  2. B) Uncontrolled fusion reaction
  3. C) Controlled fission reaction
  4. D) Uncontrolled fission reaction
Which one of the following materials contains calcium?
  1. A) China clay
  2. B) Corundum
  3. C) Gypsum
  4. D) Talc
The entry of woman as a bhikshuni into the Buddhist Sangha was allowed by Gautam Buddha at:
  1. A) Sravasti
  2. B) Vaisali
  3. C) Rajagriha
  4. D) Kushinagar
Curry-leaf tree, native of India, has the potential of a multibillion dollar production for the pharmaceutical companies, as revealed by the British researches. Cure by curry-leaf is claimed for:
  1. A) Blood Pressure
  2. B) Diabetes
  3. C) Malaria
  4. D) Tuberculosis
Harmful ultra-violet radiation coming from the sun can cause:
  1. A) Liver cancer
  2. B) Brain cancer
  3. C) Oral cancer
  4. D) Dermal cancer
Funk invented
  1. A) Vitamins
  2. B) Hormones
  3. C) Proteins
  4. D) Enzymes