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How does common salt help in separating soap from the solution after saponification? 1 By decreasing solubility of soap 2 By increasing solubility of soap 3 By decreasing density of soap 4 None of these
1 4046Which of the following is commonly called a ‘polyamide’? 1 Rayon 2 Orlon 3 Terylene 4 Nylon
SSC,
3 15399The major constituents of Portland cement include 1 Lime, silica and iron oxide 2 Lime, silica and magnesia 3 Silica, alumina and magnesia 4 Lime, silica and alumina
1 9979Glass is made of the mixture of 1 Quartz and mica 2 Sand and salt 3 Sand and silicates 4 None of these
DRDO,
2 16857Polythene is industrially prepared by the polymerization of 1 Methane 2 Styrene 3 Acetylene 4 Ethylene
3 18792Which of the following is not a chemical reaction? 1 Burning of paper 2 Digestion of food 3 Conversion of water into steam 4 Burning of coal
NTS,
1 14518What is condensation? 1 Change of gas into solid 2 Change of solid into liquid 3 Change of vapour into liquid 4 Change of heat energy into cooling energy
2 4097Which of the following is a chemical change? 1 Rusting of iron 2 Tempering of iron 3 Melting of iron 4 Bending of iron
1 8922Which of the following is a chemical change? 1 Oxidation 2 Reduction 3 Sublimation 4 Decomposition
2 5385Post New General Science Questions
Where is the biggest solar telescope in india situated?
Which scientist made detailed study on novae?
I am a student of class 12. PCMB group. I am not getting admission in any of the medical colleges. And I am not good at math. So what are the options available for me????
Which are the units of functioning in vssc?
what are advantages of excess populatoin?
Who is the first female cosmonaut?
When and where was the tata institute of fundamental research founded?
Which are known as non - luminous irregular nebulae?
Which is the largest comet?
Which is the largest refractor telescope?
In which year the solar observatory in kodikanal founded?
NO OF PLANT IN ONGC
what is defination of conductivity? How much conductivity of water ? what is effect when conductity of water low or high?
what would be the fate of life on earth 10 yrs down the lane.
What is one light second?
