When cinnabar is heated in air it first converted into …………….. and then reduced to ……………..
A) HgO, Hg
B) CuO, Cu
C) Hg, HgO
D) ZnO, Zn
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When a gas is heated the particles move more quickly. What is the change in volume of a heated gas if the pressure is kept constant ?
The volume of the gas increases on heating if pressure is kept constant.
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Calculate the energy released in kilowatt-hours when 100g of `._(3)^(7)Li` are converted into `._(2)^(4)He` by proton bombardment. Mass of `._(3)^(7)L
Correct Answer - `._(3)^(7)Li + ._(1)^(1)H` (proton) `rarr 2 ._(2)^(4)He + Q` (energy released), 6.554 xx 10^(6) kWh`
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A Stock Exchange is a place where finanacial assets can be converted into cash. It helps in fixing the market value of securities and helps to know th
Correct Answer - (i) the functions referred in above para are: (a) Provide liquidity (b) Helps in price discovery (c) Economic barometer (ii) Other functions of stock exchange are: (a)...
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The assets that can be converted into cash within a short period (i.e.,l year or less) are known as
The assets that can be converted into cash within a short period (i.e. 1 year or less) are known as. Current assets.
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Cinnabar is an ore of ……………..
Correct option is C) Hg
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In extraction of metals in the middle of activity series before reduction they are converted into ……………..
C) Metal oxides
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During Roasting …………….. ore is converted into …………….. ore.
C) Sulphide, Oxide
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Generally metallic oxides are converted into metals by ……………..
D) Reduction
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Glucose is. converted into …… by insulin and stored in the liver
(B) Glycogen
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Assertion (A) : Air is compound substance. Reason (R) : We can separate air into two or more components only by means of a chemical reaction.
B) A and R are false
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