Which one of the following pairs of substances will not produce hydrogen when reacted together?
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?
The least stable free radical is
{tex} CH_{3}CH_{2}{/tex}
{tex}CH_{3}CH_{2}CH_{2}{/tex}
{tex} (CH_{3})_{2}CH{/tex}
{tex} CH_{3}{/tex}
A needle made of bismuth is suspended freely in a magnetic field. The angle which the needle makes with the magnetic field is
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
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
then x is
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:
If n(A) = 4, n(B) = 3, n ( A✗ B ✗ C) = 24, then n(C) is equal to
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