Fried fast food, noodles, samosa, ice cream, cool drinks are known as …………………
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A piece of ice falls from a height h so that it melts completely. Only one — quarter of the heat produced is absorbed by the ice and all energy
(A) 136 km When the piece of ice falls from the height h, it possesses potential energy, mgh. This P.E. is converted to heat energy. ∴ Q = mgh But only \(\frac{1^{th}}{4}\) of it is absorbed...
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Cold cream is ………………. A) solution
Correct option is D) emulsion
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Cream from milk can be separated by A) centrifugation
A) centrifugation
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Milk, butter, cheese, cream, gel, boot polish These are A) suspensions
Correct option is B) colloids
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Fried fast food, noodles, samosa, ice cream, cool drinks are known as …………………
Fried fast food, noodles, samosa, ice cream, cool drinks are known as Junk foods.
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Assertion : All chemicals added to food items are called food preservatives. Reason : All these chemicals increase the nutritive value of the food.
(iii) Both assertion and reason are wrong statement.
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A conical cup when filled with ice-cream forms a hemispherical shape on its open end. Findthe volume of the ice-cream, if the radius of the base of th
Correct Answer - C Requierd volume = Volume of cone + Volume of sphere.
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Why is distillation required for producing certain alcoholic drinks?
Distillation increases the alcohol content in alcoholic drinks.
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What amount of ice (in g) will remain when 52 g ice is added to 100 g of water at `40^(@)C`? Specific hate of water is 1 cal//g and latent heat of fus
Correct Answer - 19
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The latent heat of fusion of ice is 5.99 kJ/mol at its melting point. Then (i) `DeltaS` for fusion of 900 g ice and (ii) `DeltaS` for freezing of liqu
Correct Answer - C `DeltaS=(DeltaH)/(T)`
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