Tag: chemistry
Questions Related to chemistry
Octane number is a scale for counting?
Quality of a diesel is measured in terms of its?
Which of the following is present in the heavy oil obtained during petroleum distillation ?
Complete removal of ______ from gasoline is done by Unisol process using caustic soda and methyl alcohol.
The electrical process of coating an inexpensive conductor with a metal is called electroplating.
Chromium plating is done to make the object scratch proof and appear shiny.
The process of depositing a thin layer of desired metal over another metal by passing an electric current through some electrolyte is called :
Rate constant in case of first order reaction is :
Fill in the blanks by choosing the correct option;
Order of the reaction is the $X$ of the powers to which concentration terms are raised in experimentally determined rate equation. The unit of first order rate constant is $Y$. The unit of first order rate constant when concentration is measured in terms of pressure and time in minutes is $Z$.
Match the rate law given in column I with the dimensions of rate constant given in column II and mark the appropriate choice.
Column I | Column II |
---|---|
(A) $Rate = k[NH _{3}]^{0}$ | (i) $mol\ L^{-1} s^{-1}$ |
(B) $Rate = k[H _{2}O _{2}][I^{-}]$ | (ii) $L\ mol^{-1} s^{-1}$ |
(C) $Rate = k[CH _{3}CHO]^{3/2}$ | (iii) $s^{-1}$ |
(D) $Rate = k[C _{2}H _{5}Cl]$ | (iv) $L^{1/2} mol^{-1/2} s^{-1}$ |