Question 1 of 10

The sequence of ionic mobility in aqueous solution is

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Question 2 of 10

For the data

the Karl Pearson coefficient is

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Question 3 of 10

Given the polymers ; A = Nylon ; B = Buna - S;C = Polythene. Arrange these in increasing order of their intermolecular force (lower to higher)

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Question 4 of 10

A binary compound of elements X and Y contains 50% of X. If the atomic masses of X and Y are 10 and 20 and the molecular mass of the compound is 120, the molecular formula of the compound is

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Question 5 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 6 of 10

The major product of the reaction between tert-butylchloride and sodium-ethoxide is

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Question 7 of 10

If X = , then Xn, for n ∈ N is equal to

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Question 8 of 10

Any point on the hyperbola (x+1)2/16 - (y-2)2/4 = 1 is of the form

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Question 9 of 10

Both ethene and ethyne can be made in one step reactions from

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Question 10 of 10

A weak acid HX has {tex}K_a = 1 \times 10^-5 M{/tex}. It forms a salt NaX on reaction with alkali. The percentage degree of dissociation of 0.1 M solution of NaX is

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