500 General Science For Assam Agriculture, PNRD, Assam Police, Assam TET, SSC & Railway Exam (Part-17)

General Science

For Assam Agriculture, PNRD, Assam Police, Assam TET, Forest, DECT, APSC, Railway & SSC Exam (Part-17)

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500 General Science (Part-17)

1➤ (Q) A gas is enclosed in a container which is then placed on a fast moving train. What will be the temperature of the gas?

Ans:- Remain unchanged

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2➤ (Q) When will a hot body radiate maximum energy?

Ans:- If its surface is black and rough

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3➤ (Q) How many electrons are involved in the oxidation by KMnO4 in basic medium?

Ans:- 4

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4➤ (Q) Which chemical substance secreted by particular species of animal to attract another member of same species?

Ans:- Pheromones

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5➤ (Q) How is the heat transferred by the radiator of a refrigerator?

Ans:- More than that at the freezer

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6➤ (Q) Which compound of zinc is white when cold and yellow when hot?

Ans:- ZnO

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7➤ (Q) Pheretima posthuma is scientific name of which animal?

Ans:- Earth worm

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8➤ (Q) Merscuric sulphide dissolves in aqua-regia to form which compund?

Ans:- HgCl2

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9➤ (Q) An individual whose blood type is B may in an emergency donate blood to a person which blood groups?

Ans:- AB or B

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10➤ (Q) If the amplitude of a wave at a distance t from a point source is A, what will be the amplitude at a distance 2r?

Ans:- A/2

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11➤ (Q) In which sequence are the electromagnetic radiations in decreasing order of wave lengths?

Ans:- Infrared, radio, X-rays, visible

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12➤ (Q) Salts of which element provide colours to fireworks?

Ans:- Strontium and barium

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13➤ (Q) Which organ have the capacity of regeneration?

Ans:- Liver

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14➤ (Q) With the increase in temperature, what happens in the frequency of the sound from an organ pipe?

Ans:- Increases

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15➤ (Q) What is obtained when cadmium chloride is treated with water?

Ans:- Cd(OH)2

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16➤ (Q) Which organ cannot be transplanted?

Ans:- Brain

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17➤ (Q) When a coin placed in a bowl of water is seen from above, how does it appears?

Ans:- Raised from its position

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18➤ (Q) What is formed when cadmium reacts with H2S?

Ans:- CdS

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19➤ (Q) Appetite and satiety centers of brain, where are present in?

Ans:- Hypothalmus

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20➤ (Q) Which gland disappear during old age?

Ans:- Thymus

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