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What are carbohydrates? How monosaccharide’s at prepared? Give their characteristics.

asked Sep 22, 2017 in Chemistry by sonia (36.5k points)

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Describe the formation of petroleum.

asked Sep 26, 2017 in Chemistry by sonia (36.5k points)

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What role is played by pine oil in the concentration process?

asked Sep 26, 2017 in Chemistry by shamroz (41.5k points)

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At which positions, the K.E. of a simple pendulum has minimum and maximum values?

asked Sep 26, 2017 in Physics by sonia (36.5k points)

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What are the disadvantages of fat soluble vitamins?

asked Sep 21, 2017 in Chemistry by shamroz (41.5k points)

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How can you differentiate between ethane and ethene?

asked Sep 21, 2017 in Chemistry by shamroz (41.5k points)

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What do you mean by atmosphere?

asked Sep 22, 2017 in Chemistry by sonia (36.5k points)

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Differentiate between minerals and ores.

asked Sep 25, 2017 in Chemistry by sonia (36.5k points)

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How water rises in plants?

asked Sep 25, 2017 in Chemistry by shamroz (41.5k points)

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How addition of Na2CO3 removes permanent hardness of water?

asked Sep 24, 2017 in Chemistry by shamroz (41.5k points)

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At which positions, the P.E. of a simple pendulum has minimum and maximum values?

asked Sep 26, 2017 in Physics by sonia (36.5k points)

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Write the molecular, dot and cross and structural formula of ethyne.

asked Sep 20, 2017 in Chemistry by shamroz (41.5k points)

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What is difference between atmosphere and environment?

asked Sep 22, 2017 in Chemistry by sonia (36.5k points)

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Mention the disadvantages of detergents.

asked Sep 25, 2017 in Chemistry by shamroz (41.5k points)

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Differentiate between saturated and unsaturated hydrocarbons.

asked Sep 20, 2017 in Chemistry by sonia (36.5k points)

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How pesticides cause water pollution?

asked Sep 24, 2017 in Chemistry by sonia (36.5k points)

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Give some disadvantages of hard water.

asked Sep 25, 2017 in Chemistry by sonia (36.5k points)

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1 answer 140 views

What is principle of fractional distillation?

asked Sep 26, 2017 in Chemistry by shamroz (41.5k points)

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Why hydrocarbons are soluble in organic solvents?

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Why a salt is neutral, explain with an example?

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