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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 4044Which of the following is commonly called a ‘polyamide’? 1 Rayon 2 Orlon 3 Terylene 4 Nylon
SSC,
3 15393The 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 9977Glass is made of the mixture of 1 Quartz and mica 2 Sand and salt 3 Sand and silicates 4 None of these
DRDO,
2 16838Polythene is industrially prepared by the polymerization of 1 Methane 2 Styrene 3 Acetylene 4 Ethylene
3 18784Which 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 14509What 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 4093Which of the following is a chemical change? 1 Rusting of iron 2 Tempering of iron 3 Melting of iron 4 Bending of iron
1 8918Which of the following is a chemical change? 1 Oxidation 2 Reduction 3 Sublimation 4 Decomposition
2 5381Post New General Science Questions
where is the indragandhi furnal in delhi, who is bulit in krishna sagar dam
The country helped in arihant’s built?
When was the indian made rocket “ rohini ” launched from thumba?
On what basis Friability limit NMT 1.0%w/w is recommended. what is impact on formulation if this limit exceeds.
Which is the first atomic submarine of india?
Describe the evolution of science and its impact on society
Which comet collided with jupiter?
if appointed at aryabhatt school for how long should we expect you work with us
In which year, physical laboratory in ahmedabad was founded?
Explain the Evolution of Science as a discipline in the Medieval Period
Why we use nhexane inplace of hexane in mobilepase preparation
What are pulsars?
what are the advantages and disadvantages of rational knowledge?
What is the capacity of arihant’s atomic reactor?
Which of the following metals is a better conductor of electricity? A. Silver B. Copper
