Question 1 of 10

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Question 2 of 10

Auto reduction is employed in the metallurgy of :

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Question 3 of 10

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Question 4 of 10

If α, β, γ are the angles made by a straight line with the coordinate axes, then sin2α+sin2β+sin2γ is

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Question 5 of 10

The energy level diagrams for exothermic SN1 and SN2 reactions could be respectively (R - Reactants P - products)

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Question 6 of 10

The two slits are 1 mm apart from each other and illuminated with a light of wavelength 5 x 10-7 m. If the distance of the screen is 1 m from the slits, then the distance between third dark fringe and fifth bright fringe is

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Question 7 of 10

The molecule having smallest bond angle is :

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Question 8 of 10

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Question 9 of 10

The force between two magnetic poles is F. If the distance between the poles and the pole strenghts is doubled, then the force experienced is:

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Question 10 of 10

Standard enthalpy and standard entropy change for the oxidation of {tex}NH_3{/tex} at 298 K, are {tex}-382.64 kJ mol^{-1}{/tex} and {tex}-145.6 J mol^{-1}{/tex} respectively. Standard Gibbs energy change for the same reaction at 298 K is :

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