Dear Aspirants,
We are providing the most important General Science Previous year Questions for RRB NTPC 2019, RRB Group D 2019, SSC 2019 and all other competitive exams. These questions have very high chances to be asked in RRB NTPC 2019, RRB Group D 2019.
Set-26 General Science Previous Year Questions
Download our GK Gaming Application “GKPK” (30000+) for upcoming RRB NTPC 2019,RRB Group D 2019.
To download “GKPK”,search “GKPK” on PlayStore or just click here.
1. The plants receive Nitrogen in form of:
1. Nitric oxide
2. Nitrate
3. Ammonia
4. Nitride
Ans:2
2. To avoid ‘knocking’ of the engine of a car, which one of the following is used as an anti-knocking agent?
1. Ethyl alcohol
2. Butane
3. Tetra Ethyl Lead
4. White Petrol
Ans:3
3. In a car battery, electrolyte substance used is-
1. Hydrochloric acid
2. Sulphuric acid
3. Nitric acid
4. Distilled water
Ans:2
4.Which gas is known as ‘noble gas”?
1. Hydrogen
2. Oxygen
3. Helium
4. Carbon dioxide
Ans:3
5.Which one of the following is coated on the photographic plate?
1. Silver oxide
2. Silver bromide
3. Silver chloride
4. Silver iodide
Ans:2
6.Methane gas producing field is-
1. Wheatfield
2. Paddy field
3. Cotton field
4. Groundnut field
Ans:2
7.A polymer used for making nonstick surface coating for utensils is-
1. Polyvinyl chloride
2. Teflon
3. Polystyrene
4. Polypropylene
Ans:2
8.Which is used as laughing gas is-
1. Nitrous Oxide
2. Nitrogen dioxide
3. Nitrogen Trioxide
4. Nitrogen Tetra Oxide
Ans:1
9.What is Nila thotha?
1. Copper Sulphate
2. Calcium Sulphate
3. Iron Sulphate
4. Sodium Sulphate
Ans:1
10.Which is the fundamental element of all organic compounds?
1. Nitrogen
2. Oxygen
3. Carbon
4. Silicon
Ans:3
11.The important metal used with iron to make it rust free-
1. Aluminium
2. Carbon
3. Chromium
4. Tin
Ans:3
12.Which one of the following catalysts is used in hydrogenation of vegetable oils?
1. Zinc
2. Platinum
3. Nickel
4. Iron
Ans:3
13.What is the shape of Sulphur hexafluoride molecule?
1. Trigonal pyramid
2. Octahedral
3. Planar
4. Tetrahedral
Ans:2
14.Formation of ozone hole is maximum over –
1. Africa
2. India
3. Antarctica
4. Europe
Ans:3
15.Taj Mahal is greatly affected due to –
1. Tourists
2. Acid rain
3. Deforestation
4. Sound pollution
Ans:2
16.Which one of the following is not a ‘greenhouse gas’?
1. Chlorofluorocarbons
2. Methane
3. Carbon dioxide
4. Nitrogen
Ans:4
17.Aspirin is common name of –
1. Salicylic acid
2. Salicylate
3. Methyl salicylate
4. Acetyl salicylic acid
Ans:4
18.According to kinetic theory of gases, at the temperature absolute zero, the gas molecules-
1. start movement
2. become mass less
3. start emitting light
4. stop movement
Ans:4
19.Particulates (< 1 μm size) remaining suspended in air indefinitely and transported by wind currents are called
1. Mists
2. Fumes
3. Aerosols
4. Smoke
Ans:3
20.The least preferred technique in the disposal of Municipal Solid Waste is :
1. Incineration
2. Composting
3. Land filling
4. Briquetting
Ans:4