Previous year MCQs

UPPSC 2012 GS-1 General science
Question

When ice melts, then the

Answer & Solution

Answer: (Detailed Solution Below)

Option B: volume decreases

Detailed Solution:

The correct answer is “volume decreases”.
When ice melts, its volume decreases because water is denser than ice and takes up less space for the same amount of mass. For example, a gram of ice has more volume than a gram of water at 0°C.

Similar Questions:

Match List-I and List-II and select the correct answer from the code given below the lists:
List-I - List-II

A. Sour Milk - 1. Malic acid
B. Vinegar and pickle - 2. Carbonic acid
C. Soda water and cold drinks 3. Acetic acid
D. Apple - 4. Lactic acid

Code:
A B C D
  1. A) 1 2 3 4
  2. B) 4 3 1 2
  3. C) 4 3 2 1
  4. D) 3 4 2 1
Gas engine was invented by:
  1. A) Diesel
  2. B) Davy
  3. C) Daimler
  4. D) Charles
A person with vision defect 'Myopia' can see:
  1. A) nearby objects clearly
  2. B) distant objects clearly
  3. C) nearby as well as distant objects clearly
  4. D) neither nearby nor distant objects clearly
Ram Mohan Roy was given the title of Raja by
  1. A) Lord William Bentinck
  2. B) Akbar II
  3. C) Followers of Brahma Samaj
  4. D) Intellectuals opposing the custom of Sati
Which one of the following is not correctly matched? Pollutant – Disease caused
  1. A) Mercury – Minamata disease
  2. B) Cadmium – Itai-Itai disease
  3. C) Nitrate Ion – Blue baby syndrome
  4. D) Fluoride Ion – Indigestion
Einstein was honoured with Nobel Prize for
  1. A) Photoelectric effect
  2. B) Theory of Specific Heats
  3. C) Special Theory of Relativity
  4. D) Bose-Einstein Statistics
The minimum number of Judges of the Supreme Court required for hearing any case involving interpretation of the Constitution is
  1. A) ten
  2. B) nine
  3. C) seven
  4. D) five
Which of the following pairs is not correctly matched?
  1. A) Karpuramanjari – Harsha
  2. B) Malavikagnimitra - Kalidas
  3. C) Mudraraksha – Vishakhadatta
  4. D) Saundarananda - Asvaghosha
Match List-I with List-II and select the correct answer from the codes given below the lists:
List-I List-II

A. Plague - 1. Protozoa
B. AIDS - 2. Fungus
C. Baldness - 3. Virus
D. Malaria - 4. Bacteria

A B C D
  1. A) 1 2 3 4
  2. B) 2 3 4 1
  3. C) 3 4 1 2
  4. D) 4 3 2 1
It is difficult to walk on ice than on road because:
  1. A) Ice is harder than road
  2. B) Road is harder than ice
  3. C) Ice does not offer any reaction when we push it with our foot
  4. D) Ice has a lesser friction than road
Fruits stored in a cold chamber exhibit longer storage life because:
  1. A) exposure to sunlight is prevented
  2. B) concentration of carbon dioxide in the environment is increased
  3. C) rate of respiration is decreased
  4. D) there is an increase in humidity
The velocity of wind is measured by
  1. A) Barometer
  2. B) Anemometer
  3. C) Hydrometer
  4. D) Wind Vane