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-12 General Science Previous Year Questions
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1.Which one of the following pairs is not correctly matched?
1. Dry ice : Solid carbon dioxide
2. Mustard gas : Poisonous liquid used in chemical warfare
3. Teflon : Polymer containing fluorine
4. Fullerene : Organic compounds containing fluorine
2.The technique of chromatography is used to-
1. Identify colour substances
2. Determine the structure of substances
3. Dry distillation of colouring substances
4. Separate the substances from a mixture
3.The gas usually filled in the electric bulb with Argon is –
3. Carbon dioxide
4.Which one of the following metals is accessed in the native state?
5.Which one of the following was used as a chemical weapon in the First World War?
1. Carbon monoxide
2. Hydrogen cyanide
3. Mustard gas
4. Water gas
6.Which one of the following chemicals helps in fruit ripening?
7.Which of the following is not a Natural polymer?
8.Which one of the following chemicals had been in use till now for making artificial clouds?
1. Potassium Nitrate
2. Heavy Water
3. Sulphur Iodide
4. Silver Iodide
9.Which of the following main elements is used in making matchbox?
10.Which is the anti-coagulant substance in blood?
11.Which one of the following cells produce antibodies?
12.Arthritis is caused by the deposition of which “of the following” in the joints of the body?
2. Uric acid
13.Which of the following parasites is responsible for 65% of the cases of malaria in India?
1. P. malariae
2. P. vivax
3. P. falciparum
4. P. Ovale
14.The radio isotope used in the detection of cancer is
1. Cobalt – 60
3. Sodium – 24
4. Carbon – 14
15.The poison of honey bee is?
16.Which of the following increases the rate of heart beat?
1. Peripheral nerves
2. Sympathetic nerves
3. Parasympathetic nerves
4. Cranial nerves
17.The deficiency of Niacin-a vitamin of B complex group causes the disease ________
18. Algal bloom results from –
1. Global warming
19.If waste materials contaminate the source of drinking water, which of the following diseases will spread?
20.Symbiotic Bacteria responsible for the fixation of atmospheric nitrogen are present in –