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How can you prepare propene from propyl alcohol?

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

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Name two factors which can enhance thermionic emission.

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

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What is electron gun? Describe the process of thermionic emission.

asked Oct 25, 2017 in Physics by sonia (36.5k points)

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When a moving electron enters the magnetic field, it is deflected from its straight path.

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

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What are advantages of Solvay's process?

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

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1 answer 409 views

You may have to open a website again and again. How can you avoid the trouble of typing and retyping its address?

asked Nov 2, 2017 in Computer Science by naqash (17.9k points)

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Prove that vibratory motion of a mass attached to a spring is SHM.

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

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What is relationship between active mass and rate of reaction?

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

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When an optician's testing room is small, he uses a mirror to help him test the eye shift of 1iis patients. Explain why.

asked Oct 22, 2017 in Physics by sonia (36.5k points)

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How can you show by simple experiments that there are two types of electric charges.

asked Oct 19, 2017 in Physics by sonia (36.5k points)

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1 answer 340 views

Describe the procedure for selecting many words or lines in MS Word program.

asked Nov 2, 2017 in Biology by naqash (17.9k points)

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Which of the flask is acting as a control? Justify.

asked Oct 16, 2017 in English by shamroz (41.5k points)

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You can listen to your friend round a corner, but you cannot watch him/her. Why?

asked Oct 17, 2017 in Physics by sonia (36.5k points)

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Why at equilibrium state reaction does not stop?

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

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1 answer 331 views

What can you do with a picture created through MS Paint?

asked Nov 1, 2017 in Biology by naqash (17.9k points)

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1 answer 330 views

Why do you display grid lines in MS Paint application window?

asked Nov 1, 2017 in Computer Science by naqash (17.9k points)

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Na2SO4 is a neutral salt while NaHSO4 is an acidic salt. Justify.

asked Sep 17, 2017 in Chemistry by shamroz (41.5k points)

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What is necessary condition for the production of sound?

asked Oct 16, 2017 in Physics by shamroz (41.5k points)

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Will the bending of the light be more or less for a medium with high refractive index?

asked Oct 18, 2017 in Physics by sonia (36.5k points)

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Is e.m.f. really a force? Explain.

asked Oct 23, 2017 in Physics by shamroz (41.5k points)

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