List of top Chemistry Questions

Saturated solution of $ KN{{O}_{3}} $ is used to make salt bridge because
On passing $3A$ of electricity for $50$ min $1.8\, g$ metal deposits. The equivalent mass of metal is
Which of the following is used widely in the manufacture of lead storage battery?
The general formula $ {{C}_{n}}{{H}_{2n}}{{O}_{2}} $ could be for open chain
Decomposition of hydrogen peroxide can be prevented by adding
Which of the following is an intensive property ?
The enthalpies of combustion of carbon and carbon monoxide are $ -393.5$ and $ -283\,kJ\, mol^{-1}$ respectively. The enthalpy of formation of carbon monoxide per mole is
Ammonia gas dissolves in water to form $ NH_{4}OH$ . In this reaction water acts as
The structure of $PF_{5}$ molecule is
A solid is made of two elements $X$ and $Z$. The atoms $Z$ are in $CCP$ arrangement while the atoms $X$ occupy all the tetrahedral sites. What is the formula of the compound?
During the evaporation of liquid
For the square planar complex $[M(a)(b)(c)(d)]$ (where, $M =$ central metal and $a, b, c$ and $d$ are monodentate ligands), the number of possible geometrical isomers are
The discovery of which of the following group of elements gave death blow to the Newland's law of octaves?
Which of the following statements is correct? Dielectric constant of $ {{H}_{2}}{{O}_{2}} $
The electronic configuration of a dipositive ion $ {{M}^{2+}} $ is $2, 8, 14$ and its mass number is $56$. The number of neutrons present is
The heat of formation of $ C{{O}_{2}} $ is $ -95\text{ }kcal $ . The amount of carbon which on burning will evolve 1000 kcal is
Which statement best explains why A is more acidic than B?
Choose the reagent to carry out the reaction. $ C{{H}_{3}}C\equiv CC{{H}_{3}}\xrightarrow[{}]{{}}\underset{cis\text{ }form}{\mathop{C{{H}_{3}}CH=CHC{{H}_{3}}}}\, $
Which of the following would not form upon electrolysis of aqueous solution of potassium propanoate?
Among the following molecules or ions, which has the longest $ C-N $ bond?
Which of the following compounds can exist in enantiomeric (i.e., D and L) forms?
lodoform test is not answered by:
Which of the following is the correct electronic configuration of $Cr$?
Hydrogen peroxide is prepared in the laboratory by:
A gas has a vapour density $11.2$. The volume occupied by 1 gm of gas at NTP is: