List of top Chemistry Questions

Shape of $SF_{4}$ is
For an adiabatic change in a system, the condition which is applicable will be
The two functional groups present in a typical carbohydrate are
The number of possible alcohol isomers for $ C_4H_{10}O $ is
The oxidation state of potassium in $KO_{2}$ is
Intramolecular hydrogen bonding is found in
The type of bonds present in $CuSO_4�5H_2O$ are _________.
An endothermic reaction is found to have $+ve$ entropy change. The reaction will be
For one mole of $ {NaCl_{(s)}}$ the lattice enthalpy is
$ 2 \,g $ of benzoic acid $ (C_6H_6COOH) $ is dissolved in $ 25\, g $ of benzene. The observed molar mass of benzoic acid is found to be $ 241.98 $ . What is the percentage association of acid if it forms in solution?
$ 0.6 \,mL $ of acetic acid is dissolved in $ 1 \,L $ of water. The value of van?t Hoff factor is $ 1.04 $ . What will be the degree of dissociation of the acetic acid?
What is the mole fraction of the solute in $ 2.5 $ molal aqueous solution?
Which of the following statement is true ?
Boiling point of chloroform was raised by $0.323 \,K$, when $0.5143\, g$ of anthracene was dissolved in its $35 \,g$. Molecular mass of anthracene is $(K_b$ for $CHCl_3 = 3.9 \,K \,kg\,, mol^{-1})$
Setting of plaster of Paris is
The pair of compound which cannot exist together in solution is
A catalyst only
For which of the following order of reaction, half-life is independent of initial concentration?

Arrange the following in the order of their increasing masses. \(${(Atomic\, mass : O = 16, N = 14)}$\) I. One atom of oxygen II. One atom of nitrogen III. \($1 \times 10^{-10}$\) mole of oxygen

The number of $ Cl^{-} $ ions in $ 100\, mL $ of $ 0.001\, M \,HCl $ solution is
$ CH_3 - CH_2 - CH = CH_2 + HBr$ $ \xrightarrow{ROOR\text{(peroside)}} \underset{\text{Major}}{(X)} + \underset{\text{Minor}}{(Y)}$ $X$ and $Y$ respectively are
$CN^-$ ion is an ambident nucleophile. Nucleophiles are electron rich species.
A vessel of one litre capacity containing $1$ mole of $SO_3$ is heated till a state of equilibrium is attained. $ {2SO3_{(g)} <=> 2SO2_{(g)} + O2_{(g)}}$ At equilibrium, $0.6 \,moles$ of $SO_2$ had formed. The value of equilibrium constant is
The %yield of ammonia as a function of time in the reaction $N_{2}\left(g\right) + 3H_{2}\left(g\right) {\rightleftharpoons} 2NH_{3}\left(g\right), ?H < 0$ at $\left(P, T_{1}\right)$ is given below. If this reaction is conducted at $\left(P, T_{2}\right)$, with $T_{2} > T_{1}$, the %yield of ammonia as a function of time isrepresented by -
For a reaction, $C_{(s)}+C O_{2}(g) \rightarrow 2 C O_{(g)}$; the partial pressure of $C O_{2}$ and $C O$ are $4$ and $8$ atm, respectively. $K_{p}$ for the reaction is