Previous year MCQs

General science UPPSC 1996 GS-I
Question

Which one of the following statements is correct?

Answer & Solution

Answer: (Detailed Solution Below)

Option C: RDX is an explosive

Detailed Solution:

The correct answer is “RDX is an explosive”.
1) DDT was the first of the modern synthetic insecticides, developed in the 1940s. It helped control diseases such as typhus and malaria.

2) TNT stands for 2,4,6-trinitrotoluene, a man-made, odorless, yellow solid that's used as an explosive.

3) RDX is a synthetic chemical that's used as an explosive in military applications and in other products.

4) LSD (lysergic acid diethylamide) is a hallucinogenic drug. Hallucinogens change the way people sense the world around them.

Similar Questions:

Which of the following vitamin is responsible for coagulation of blood in human being ?
  1. A) Vitamin K
  2. B) Vitamin E
  3. C) Vitamin A
  4. D) Vitamin C
Dinosaurs were:
  1. A) Cenozoic reptiles
  2. B) Mesozoic birds
  3. C) Palaeozoic amphibia
  4. D) Mesozoic reptiles
Photovoltaic cells are:
  1. A) Solar cells
  2. B) Thermal cells
  3. C) Sulphur cells
  4. D) Molar cells
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
Refrigeration helps in food preservation by
  1. A) killing of germs (bacteria)
  2. B) reducing the rate of biochemical reaction
  3. C) destroying the enzyme action
  4. D) sealing food with a layer of ice
Biological resurfacing is a recent surgical technique used to treat problems of:
  1. A) Knee joints
  2. B) Ankle joints
  3. C) Hip joints
  4. D) Vertebral joints
Which one of the following causes acid rain:
  1. A) Carbon monoxide
  2. B) Carbon dioxide
  3. C) Ozone
  4. D) Nitrogen oxide
Match List-I with List-II and select the correct answer using the codes given below:
List I - List II

A) Kevlar - 1) Explosive
B) Taxol - 2) Synthetic fibre
C) Zink Phosphide - 3) Anticancer drug
D) Nitrocellulose - 4) Rodenticide
  1. A) A-2, B-4, C-3, D-1
  2. B) A-2, B-3, C-4, D-1
  3. C) A-4, B-3, C-1, D-2
  4. D) A-3, B-1, C-2, D-4
What is the function of a pace maker?
  1. A) It regulates the heart beat
  2. B) It increases the heart beat
  3. C) It accelerates blood supply to heart
  4. D) It decreases the heart beat
Which one of the following is NOT correctly matched?
  1. A) Detroit – Motor cars
  2. B) Havana – Cigars
  3. C) Sheffield – Cutlery
  4. D) Venice – Ship-building
Some marine animals and insects emit light from their body in darkness. This phenomenon is known as.
  1. A) Phosphorescence
  2. B) Bioluminescence
  3. C) Both (a) and (b)
  4. D) None of these
"Endoscope" used by Doctors for examining the inside of the patient’s stomach, works on the principle of:
  1. A) Reflection of light
  2. B) Dispersion of light
  3. C) Total internal reflection of light
  4. D) Refraction of light