Question 1 of 10

No of {tex}H_2O{/tex} molecules in a drop of water weighing 0.05g is:

Question 2 of 10

In a polymer sample, 30% of molecules have a molecular mass of 20,000 40% have 30,000 and the rest 60,000. What is the weight average molecular mass of the polymer?

Question 3 of 10

The temperature at which 10% aqueous solution (w/V) of glucose will exhibit the osmotic pressure of 16.4 atm, is (R = 0.082 dm³ atm K^-1 mol^-1)

Question 4 of 10

Which of the following is diamagnetic?

Question 5 of 10

Which substance serves as a reducing agent in the following reaction, {tex}14H^{+} + Cr_2O^{2-}_7 + 3Ni \rightarrow 2Cr^{3+} + 7H_2O + 3Ni^{2+}{/tex}

Question 6 of 10

then x is

Question 7 of 10

The name of the compound in figure is

Question 8 of 10

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Question 9 of 10

Two thin metallic strips carrying current in the direction shown, cross each other perpendicularly without touching but being close to each other, as shown. The regions which contain some points of zero magnetic induction are:

Question 10 of 10

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E