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Define and give the characteristics of a Lewis acid.

asked Sep 15, 2017 in Biology by shamroz (41.5k points)

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1 answer 345 views

What is the characteristics of stratosphere?

asked Sep 23, 2017 in Chemistry by shamroz (41.5k points)

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1 answer 352 views

Explain the sources and uses of lipids.

asked Sep 22, 2017 in Chemistry by sonia (36.5k 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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Give an example of a disaccharide. How it is hydrolyzed into monosaccharide’s?

asked Sep 22, 2017 in Chemistry by shamroz (41.5k points)

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1 answer 251 views

What do you mean by fluorosis?

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

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1 answer 341 views

What is difference between atmosphere and environment?

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

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1 answer 333 views

Differentiate between primary and secondary air pollutants.

asked Sep 23, 2017 in Chemistry by sonia (36.5k points)

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1 answer 418 views

Why hydrocarbons are soluble in organic solvents?

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

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1 answer 240 views

How water rises in plants?

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

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1 answer 239 views

Which salts are responsible for hardness of water?

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

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1 answer 235 views

Mention the disadvantages of detergents.

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

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1 answer 189 views

Define the law of mass action.

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

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1 answer 190 views

What is principle of fractional distillation?

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

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Why COs is called a greenhouse gas?

asked Sep 22, 2017 in Chemistry by shamroz (41.5k 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 361 views

Lactose is a disaccharide; which monosaccharide’s are present in it?

asked Sep 21, 2017 in Chemistry by sonia (36.5k points)

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1 answer 313 views

CO2 is necessary for plants but why its increasing concentration is alarming for us?

asked Sep 23, 2017 in Chemistry by shamroz (41.5k points)

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1 answer 612 views

Which types of salts produce SO2 gas on reacting with acids?

asked Sep 16, 2017 in Chemistry by shamroz (41.5k points)

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How petroleum is extracted?

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

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