Question 1 of 10

On a humid day in summer, the mole fraction of gaseous H2O (water vapour ) in the air at 25° C can be as high as 0.0287. Assuming the total pressure of 0.977 atm, what is the partial pressure of dry air ?

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Question 2 of 10

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

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Question 3 of 10

Chloroform gives a trichloro derivative of an alcohol on reaction with

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Question 4 of 10

The values of λ so that the line 3x-4y=λ touches x2+y2-4x-8y-5=0 are

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Question 5 of 10

According to MO theory, which of the following ranks the nitrogen species in terms of increasing bond order?

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Question 6 of 10

The average monthly salary of workers in a factory is Rs. 206. If the average monthly salary of males and females are Rs. 210 and Rs. 190 respectively, the percentage of female employed in the factory is

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Question 7 of 10

Which of the following on thermal decomposition yields a basic as well as an acidic oxide?

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Question 8 of 10

If vector a = i + 2j + 3k and b = i × (a×i) + j×(a×j) + k×(a×k) then length of b is equal to

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Question 9 of 10

The angle of minimum deviation in an equilateral prism of refractive index 1.414 is

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Question 10 of 10

Fear or exitement, generally cause one to breath rapidly and it results in the decrease of {tex}CO_2{/tex} concentration in blood. In what way will it change the pH of blood?

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