Previous year MCQs

General science UPPSC 2014 GS-I
Question

Which one of the following is not an explosive matter?

Answer & Solution

Answer: (Detailed Solution Below)

Option D: Nitrochloroform

Detailed Solution:

The correct answer is “Nitrochloroform”.
Nitrochloroform is not an explosive matter.  While it is a highly toxic and dangerous chemical, it does not possess the necessary properties to undergo an explosive reaction.

The other options listed - Trinitrotoluene (TNT), Dinitro glycerine, and Cyclo Trimethylene trinitrarmine (RDX) - are all well-known explosives.   Sources and related content

Similar Questions:

Which among the following is a constituent of natural silk?
  1. A) Phosphorus
  2. B) Nitrogen
  3. C) Magnesium
  4. D) Potassium
If an apple is released from an orbiting spaceship, it will
  1. A) Fall towards the Earth
  2. B) Move at a lower speed
  3. C) Move along with the spaceship at the same speed
  4. D) Move at a higher speed
The radar is used for:
  1. A) detecting objects lightwaves
  2. B) detecting objects by reflection of sound waves
  3. C) determining the position of objects by radio waves
  4. D) following rain clouds
Given below are two statements, one is labelled as Assertion (A) and other as Reason (R) :

Assertion (A): Invert sugar is more sweeter than sucrose.
Reason (R) : Invert sugar is obtained by the hydrolysis of sucrose.

Select the correct answer from the codes given below.
Codes :
  1. A) Both (A) and (R) are true and (R) is the correct explanation of (A)
  2. B) Both (A) and (R) are true but (R) is not the correct explanation of (A)
  3. C) (A) is true but (R) is false
  4. D) (A) is false but (R) is true
Which one of the following is a rich source of iron?
  1. A) Carrot
  2. B) Pea
  3. C) Rice
  4. D) Spinach
Which one of the following is not related with ecological balance?
  1. A) Water management
  2. B) Afforestation
  3. C) Industrial Management
  4. D) Wild life protection
The rain-drops are spherical because:
  1. A) they fall from big height
  2. B) the air has resistance
  3. C) the water has surface tension
  4. D) none of the above
When ice melts, then the
  1. A) volume increases
  2. B) volume decreases
  3. C) mass increases
  4. D) mass decreases
The Rural Infrastructure Development Fund (RIDF) has been created under:
  1. A) Reserve Bank of India
  2. B) NABARD
  3. C) Ministry of Agriculture
  4. D) Ministry of Rural Development
Given below are two statements, one is labelled as Assertion (A) and the other as Reason (R).

Assertion (A): Maximum number of the species of butterflies are found in tropical countries.
Reason (R): Butterflies can not tolerate low temperatures.

Select the correct answer using the codes given below:
Codes:
  1. A) Both (A) and (R) are true and (R) is the correct explanation of (A)
  2. B) Both (A) and (R) are true but (R) is not the correct explanation of (A)
  3. C) (A) is true but (R) is false
  4. D) (A) is false but (R) is true
The age of the tree can be determined from the
  1. A) Counting of leaves on the tree
  2. B) Counting the number of rings on its stem
  3. C) Counting the branches on the tree
  4. D) Measurement of its height
Biodiversity means:
  1. A) diverse kinds of plants and vegetation.
  2. B) diverse kinds of animals.
  3. C) diverse kinds of plants and animals in particular area.
  4. D) diverse kinds of exotic plants and animals.