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General-Studies Quiz For FCI Phase I 2022- 26th December

Q1. Which one of the following is involved for desalination of sea water?
(a) Reverse osmosis
(b) Simple osmosis
(c) Use of sodium aluminium silicate as zeolite
(d) Use of ion selective electrodes
(e) None of the above

Q2. Zinc is used to protect iron from corrsion because zinc is
(a) more electropositive than iron
(b) cheaper than iron
(c) a bluish white metal
(d) a good conductor of heat and electricity
(e) None of the above

Q3. Which one of the following is not a chemical change?
(a) Burning of coal in air
(b) Fermentation of sugar cane juice
(c) Crystallisation of table salt from sea water
(d) Cracking of petroleum
(e) None of the above

Q4. The nuclear fuel in the sun is
(a) helium
(b) hydrogen
(c) uranium
(d) alpha particles
(e) None of the above

Q5. Which one of the following elements is used in the manufacture of safety matches?
(a) Graphite
(b) Phosphorus
(c) Silicon
(d) Sodium
(e) None of the above

Q6. Which fertilizer is assimilated directly by the plant?
(a) Super phosphate
(b) Nitrolim
(c) Muriate of Potash
(d) Humus
(e) None of the above

Q7. For retting of jute the fermenting microbe used is
(a) Methophilic bacteria
(b) Clostridium butyricum
(c) Helicobactor pylori
(d) Streptococcus lactin
(e) None of the above

Q8. The aquatic fern which is an excellent biofertilizer is
(a) Azolla
(b) Salvinia
(c) Marsilea
(d) Pteridium
(e) None of the above

Q9. The halogen being used as analgesic is
(a) chlorine
(b) bromine
(c) iodine
(d) fluorine
(e) None of the above

Q10. Which one of the following elements is a metalloid?
(a) P
(b) Al
(c) As
(d) Po
(e) None of the above


S1.Ans. (a)
Sol. Reverse osmosis method is used to obtain pure water from water containing a salt or for desalination of sea water.

S2.Ans. (a)
Sol. Zinc metal is used to protect iron from corrosion because zinc is more electropositive than iron. The process of coating the iron surface by zinc is called galvanisation. Zinc metal present on the surface of iron forms a thin protective layer of basic zinc carbonate due to the reaction between zinc, oxygen, CO2 and moisture in air. Since, standard redcuction potential of zinc is less than iron, hence iron will not undergo corrosion.

S3.Ans. (c)
Sol. A chemical change a new substance is formed. During crystallisation of table salt from sea water no new substance is formed hence, it is not a chemical change.

S4.Ans. (a)
Sol. The sun generates its energy by nuclear fusion of hydrogen nuclei into helium. Coming together of smaller nuclei and formation of heavy nucleus is know as nuclear fusion process huge amount of energy is released in nuclear fusion process.

S5.Ans. (b)
Sol. The coated end of a match, known as the match “head”, contains red phosphorus as the active ingredient and gelatin as a binder.

S6.Ans. (b)
Sol. Anaemia is a medical condition in which the red blood cell count or haemoglobin is less than normal. For men, anaemia is typically defined as haemoglobin level of less than 13.5 gram/100 ml and in women as haemoglobin of less than 12.0 gram/100 ml. Vitamin supplements given orally (folic acid or vitamin B12) or intramuscularly (vitamin B12) will replace specific deficiencies. So,the doctor advices advises the patient iron and folic acid tablets.

S7.Ans. (c)
Sol. Dropsy is a disease, which means swelling of the body. Main symptoms of ‘Dropsy’ are: (i) swelling of the whole body especially legs (ii) gastrointestinal symptoms like vomitting, diarrhoea, loss of appetite (iii) tingling sensation in the skin (iv) tenderness in the calf muscles (v) increased intra-occular (inside the eye) pressure which is known as glaucoma.It is caused by adulteration in mustard oil.

S8.Ans. (b)
Sol. Leprosy is a disease caused by bacteria called Mycobacterium Leprae. It affects mainly the skin and the nerves. Leprosy is also known as Hansen’s disease after the scientist M. leprae who discovered it in 1873. Leprosy is spread between people. This is believed to occur through a cough or contact with fluid from the nose of an infected person.

S9.Ans. (b)
Sol. Compounds of bromine have been used as sedatives, hypnotics, and analgesics.

S10.Ans. (c)
Sol. As (Arsenic) is a metalloid. In this group both As and Sb are metalloids.

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