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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 4104Which of the following is commonly called a ‘polyamide’? 1 Rayon 2 Orlon 3 Terylene 4 Nylon
SSC,
3 15511The 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 10041Glass is made of the mixture of 1 Quartz and mica 2 Sand and salt 3 Sand and silicates 4 None of these
DRDO,
2 16966Polythene is industrially prepared by the polymerization of 1 Methane 2 Styrene 3 Acetylene 4 Ethylene
3 18938Which 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 14629What 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 4195Which of the following is a chemical change? 1 Rusting of iron 2 Tempering of iron 3 Melting of iron 4 Bending of iron
1 9008Which of the following is a chemical change? 1 Oxidation 2 Reduction 3 Sublimation 4 Decomposition
2 5484Post New General Science Questions
Terls was dedicated to u.n as an international institution?
Let arr be an array of 20 integers. Write a program that first fills the array with up to 20 input values and then finds and displays both the subscript of the largest item in arr and the value of the largest item. • Use an IDE to develop and save your work
Write two characteristics of Science.
What is the capacity of arihant’s atomic reactor?
Describe the evolution of science and its impact on society
Which is india’s largest nuclear research reactor?
What is the significance of international geo - physical year?
Who is the first female cosmonaut?
How many naval staffs can occupy arihant?
What was the code name given to the first explosion?
Which are known as non - luminous irregular nebulae?
Which is india’s primary nuclear facility?
Define science
When did india conduct three under ground nuclear tests?
the basic approach to science was established by:
