Question # 1

Which one of the following metals does not react with water produce hydrogen:

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Sodium

Potassium

Lithium

Cadmium

For sending sound waves at large distance, Which waves are used

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Infrared waves

Radio waves

Light waves

X-waves

A hydrogen-inflated polythene balloon is released form the surface of the earth, As the balloon raises to an altitude up in the atmosphere, ti will

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decrease in aize

flatten it a disc like shape

increase in size

maintain the same size and shape

At what temperature of the Celsius and Fahrenheit scale match?

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-18 degrees

106 degrees

60 degrees

-40 degrees

Vitamins were first called accessory factors because in 1960 it was found by English biochemist_______

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Casimir Funk

Joseph Park

Sir F.G. Hopkins

None of these

The world ''Vitamin'' came form the term vita mines which was introduced in 1912 by:

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Casimir funk

Joseph Park

Sir F.G. Hopkins

None of these

The 'stones' formed in human kidney consist mostly of?

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Calcium oxalate

Sulphate

Sodium acetate

Calcium

Pure gold is:

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17 carat

20 carat

24 carat

36 carat

In a town 65% people watched the news on television , 40 % read a newspaper and 25% read a newspaper and watch ed he news on the television also. What percent of neither watched the news on neither television nor read a newspaper?

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5

10

15

20

A certain amount double itself in 8 years at simple interest. At the same rate it will become 3 time din how many years?

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18 years

16 years

14 years

None of these

Which one among the following element/ions is essential in small quantities for development of healthy teeth butt causes motting of the the if consumed in higher quantities?

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Fluoride

Iron

Chloride

Potassium

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