List of top Chemistry Questions asked in AFMC

Which one of the following pairs is not correctly matched ?
What is the time (in sec) required for depositing all the silver present in $125\, mL$ of $1\, M\,AgNO _{3}$ solution by passing a current of $241.25 A$ ?$ (IF =965000\, C)$
Identify the reaction for which $\Delta H\ne \Delta E.$
Hydrolysis of $NCl _{3}$ gives $NH _{3}$ and $X$. Which of the following is $X$ ?
Which of the following compounds when heated with $CO$ at $150^{\circ} C$ and $500$ atm pressure in presence of $BF _{3}$ forms ethyl propionate ?
Which of the products is formed when acetone is reacted with barium hydroxide solution?
What is the correct order of occurrence ($\%$ by weight) in air of $Ne , Ar$ and $Kr$ ?
When acetaldehyde is heated with Fehling solution, a red precipitate is formed. Which of the following is that?
A solution of an acid has $\left[ H ^{+}\right]=2 \times 10^{-5}$. Find out the concentration of $OH ^{-}$ions.
Which of the following is added to chloroform to slow down its aerial oxidation in presence of light?
The disperse phase, dispersion medium and nature of colloidal solution (lyophilic or lyophobic) of 'gold sol' respectively, are
From Williamson's synthesis preparation of which of the following is possible?
Chloramine-T is a
Glauber salt is
Shape of $ XeF_4$ molecule is
A brown ring appears in the test for
Potassium is kept in
Glauber salt is
Nessler's reagent is
An aqueous solution of glucose is $10\%$ in strength. The volume in which $1 \,g$ mole of it is dissolved will be
Important ore of zinc is
A metal which is refined by polling is
Which compound is highest covalent?
When alcohol reacts with concentrated $H_{2}SO_{4},$ intermediate compound formed is :
Which of the following is an inert gas ?