Question 1 of 10

Which one of the following pairs of substances will not produce hydrogen when reacted together?

Question 2 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?

Question 3 of 10

The least stable free radical is

Question 4 of 10

A needle made of bismuth is suspended freely in a magnetic field. The angle which the needle makes with the magnetic field is

Question 5 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

Question 6 of 10

The rate of a First order reaction 0.04 {tex}mol^{-1} S^{-1}{/tex} at 10 seconds 0.03 {tex}mol^{-1} s^{-1}{/tex} at 20 seconds after intiation of reaction. The half life period of the reaction is

Question 7 of 10

then x is

Question 8 of 10

The oxidation state of the most electronegative element in the products of the reaction between {tex}BaO_2{/tex} and {tex}H_2SO_4{/tex} are:

Question 9 of 10

If n(A) = 4, n(B) = 3, n ( A✗ B ✗ C) = 24, then n(C) is equal to

Question 10 of 10

A

B

C

D

E2 log (x²+1)(x²+3)+c