List of top Chemistry Questions

1 -Propanol and 2-propanol can be distinguished by
The half life period of a first order chemical reaction is 6.93 minutes. The time required for the completion of 99% of the chemical reaction will be (log 2 = 0.301)
What is $Z$ in the following sequence of reactions? $\text{Phenol}\xrightarrow[\text{dust}]{Zn} X \xrightarrow[{\text{Anhyd}}.AlCl_3]{CH_3Cl} Y \xrightarrow[KMnO_4]{\text{Alkaline}}Z$
Excess of $NaOH_{(aq)}$ was added to $100\, mL$ of ${ FeCl_3}$ (aq) resulting into $2.14\, g$ of ${Fe(OH)_3}$. The molarity of ${FeCl_3}$ (aq) is : (Given molar mass of ${Fe = 56 \, g \, mol^{-1}}$ and molar mass of ${Cl = 35.5 \, g \, mol^{-1}}$)
According to Henry's law, the volume of a gas dissolved in a solvent at a given temperature is
$sp^3d^2$ hybridization is not displayed by :
The Autotrophic mode of nutrition requires :
The most electronegative element in the periodic table is :
Which of the following does not contain a carboxyl group : \(-COOH\)
In the periodic table the position of the element still uncertain is of :
Glucose is broken down to 3-carbon compound called :
Alveoli and villi both increases :
Correct formula of sodium peroxide is :
Symbol of silver is :
General formula of an alkyne is :
Isotopes of an element have the same :
Gold mines are located in India at :
Which of the following is used to make non-stick cookware :
Which among the following is an insulator :
The molecular mass of \(\text{H}_2\text{SO}_4\) acid is :
Red litmus paper turns blue in the solution the pH can be :
During evaporation particles of a liquid change into vapour :
If K, L, M, N shells of an atom are full, the total number of electrons in that atom are :
The process of evaporation causes :
Dry ice on heating produces :