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Important questions on Measurement Of Area Volume And Density

HARD

of oxygen and of hydrogen are mixed and kept at pressure and . The total volume occupied by the mixture will be nearly.

A

B

C

D

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HARD

A rectangular plate has a length of and a width of . Calculate the area of the plate, including its uncertainty.

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HARD

One mole of a gas refers to:

A

the number of molecules in one litre of gas

B

the number of molecules in one gram of gas

C

the number of molecules contained in grams of isotope

D

the number of molecules in litres of a gas at S.T.P

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HARD

Following is the graphical presentation of volume occupied by different gases at S.T.P. Which is/are placed at correct position ?
x-axis : mass of the gas sample  ;    y-axis : volume of the gas sample at STP


A

B

C

D

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HARD

The pressure of the gas was found to decrease from to . When of the sample of activated charcoal was kept in a flask of one litre capacity maintained at . If the density of charcoal at . The volume of gas adsorbed per gm of charcoal at of is:

A

B

C

D

None of these

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HARD

Hydraulic engineers in the United States often use, as a unit of volume of water, the ,defined as the volume of wa-ter that will cover acre of land to adepth of ft.A severe thun-derstorm dumped in. of rain in min on a town of area .What volume of water,in acre-feet, fell on the town?

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HARD

ion is oxidized by ion, the products are and ions. What volume of 0.25M thiosulphate solution would be needed to reduce 1 g of (K = 39)

A

36.92 ml

B

32.69 ml

C

29.63 ml

D

62.93 ml

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HARD

A public park, in the form of a square, has an area of .The side of park is :

A

B

C

D

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HARD

Range of cannon is 1.5 km when angle of projection is . What will be max range of the cannon.

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HARD

of a mixture of and weight at . Calculate the volume of in the mixture at .

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