A container is first filled with water and then entire water is replaced by mercury. Mercury has a density of 13.6 x 103 kg/m3 If X is the weight of the water and Y is the weight of the mercury, then
X = Y
X = 13.6 Y
Y = 13.6 X
None of the above
C.
Y = 13.6 X
Examine these two statements carefully and select the answers to these items using the code given below:
Statement I: There is high salinity in Red sea.
Statement II: Rate of evaporation is high in Red sea.
Both the statements are individually true and Statement II is the correct explanation of Statement I.
Both the statements are individually true but Statement II is not the correct explanation of Statement I.
Statement I is true but Statement II is false.
Statement I is false but Statement II is true.
Examine hese two statements carefully and select the answers to these items using the code given below:
Statement I: Petroleum is a mixture of many different hydrocarbons of different densities.
Statement II: The grade of petroleum depends mainly on the relative proportion of the different hydrocarbons.
Both the statements are individually true and Statement II is the correct explanation of Statement I.
Both the statements are individually true but Statement II is not the correct explanation of Statement I.
Statement I is true but Statement II is false.
Statement I is false but Statement II is true.
Examine these two statements carefully and select the answers to these items using the code given below:
Statement I: India has wide variation, in population density.
Statement II: Factors like agricultural productivity and history of settlements have greatly influenced the population density pattern in India.
Both the statements are individually true and Statement II is the correct explanation of Statement I.
Both the statements are individually true but Statement II is not the correct explanation of Statement I.
Statement I is true but Statement II is false
Statement I is false but Statement II is true.
One of the main causes of air pollution in cities is emissions from vehicles like cars and trucks. Cars emit various pollutants which are bad for human health when inhaled, like
Which of the above pollutants are not tolerated by human beings even at very low levels?
1 and 4 only
1 and 2 only
1,2 and 3 only
1,2 and 3 only
Examine these two statements carefully and select the answers to these items using the code given below:
Statement I: Plantation farming has mostly been practised in humid tropics.
Statement II: The soil of humid tropics is highly fertile.
Both the statements are individually true and Statement II is the correct explanation of Statement I.
Both the statements are individually true but Statement II is not the correct explanation of Statement I.
Statement I is true but Statement II is false
Statement I is false but Statement II is true.
Which one of the following is not a chemical change?
Ripening of fruits
Curdling of milk
Freezing of water
Digestion of food
The phosphorus used in the manufacture of safety matches is
Red phosphorus
Black phosphorus
White phosphorus
Scarlet phosphorus
Examine these two statements carefully and select the answers to these items using the code given below:
Statement I: Volcanic eruption is accompanied by earthquakes.
Statement II: Volcanoes erupt water vapours and dust particles in the atmosphere.
Both the statements are individually true and Statement II is the correct explanation of Statement I.
Both the statements are individually true but Statement II is not the correct explanation of Statement I.
Statement I is true but Statement II is false
Statement I is false but Statement II is true.
