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What is lone pair? How many lone pairs of electrons are present on nitrogen in ammonia?

asked Nov 22, 2018 in Chemistry by danish (1.0m points)

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Why does a cup of hot tea become cold after sometime?

asked Nov 21, 2018 in Physics by danish (1.0m points)

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What types of problems can be faced while generating electricity?

asked Nov 25, 2018 in Science by danish (1.0m points)

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Elaborate the structure and working of human eye?

asked Nov 25, 2018 in Science by danish (1.0m points)

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Why reactivity of metals increases down the group?

asked Nov 22, 2018 in Chemistry by danish (1.0m points)

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Define heredity?

asked Nov 23, 2018 in Science by danish (1.0m points)

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Why do we kept plants under the roof of fiber glass or plastic sheet in winter?

asked Nov 21, 2018 in Physics by danish (1.0m points)

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How organs are formed?

asked Nov 26, 2018 in Science by danish (1.0m points)

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When did law of conservation of mass was put forward?

asked Nov 23, 2018 in Science by danish (1.0m points)

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Write a detailed note on major systems of human body?

asked Nov 26, 2018 in Science by danish (1.0m points)

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What did Quaid-e-azam Muhammad Ali Jinnah say about Nationalism

asked Nov 19, 2018 in Pak. Studies by danish (1.0m points)

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Explain reflex action with an example.

asked Nov 23, 2018 in Chemistry by danish (1.0m points)

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Sketch an electric generator and its important parts

asked Nov 25, 2018 in Science by danish (1.0m points)

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Why does the anode carries negative charge in galvanic cell but positive charge in electrolytic cell? Justify with comments

asked Nov 22, 2018 in Chemistry by danish (1.0m points)

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What is riveting ?

asked Nov 24, 2018 in Science by danish (1.0m points)

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Describe the cellular hierarchy from cell to organ systems in animals and plants.

asked Nov 26, 2018 in Science by danish (1.0m points)

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Differentiate between torque and couple?

asked Nov 20, 2018 in Physics by danish (1.0m points)

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Design an experiment to generate electricity.

asked Nov 25, 2018 in Science by danish (1.0m points)

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Write a short note on nerve

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How does the nature of attractive force of solute-solute and solvent-solvent affect the solubility?

asked Nov 22, 2018 in Chemistry by danish (1.0m points)

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