List of top Chemistry Questions

Reaction of chloroform with $KOH$ in the presence of a primary aromatic amine is called
Which one of the following conversions involve change in both hybridization and shape?
The sugar present in milk is__________
For the reversible reaction $A_{(s)}+B_{(g)} \rightleftharpoons C_{(g)}+D_{(g)}: \Delta G^{0}=-350 kJ .$ Which one of the following statements is true?
In $ HCO{{O}^{-}} $ , the two carbon-oxygen bonds are found to be of equal length. What is the reason for this?
Reaction of methyl bromide with aqueous sodium hydroxide involves
The correct IUPAC name of $K_2[Ni(CN)_4]$ is _______
The empirical formula of a non-electrolyte is $CH_2O$. A solution containing $6 \,g$ of the compound exerts the same osmotic pressure as that of $0.05\, M$ glucose solution at the same temperature. The molecular formula of the compound is
The amount of heat evolved when $500 \,cm^3$ of $0.1 \,M \,HCl$ is mixed with $200\, cm^3$ of $0.2\,M \,NaOH$ is _______
The spin only magnetic moment of $Mn^{+4}$ ion is nearly____
The set of quantum numbers for the outermost electron for copper in its ground state is ___________
$P_4O_{10}$ is the anhydride of
The orbital frequency of an electron in the hydrogen atom is proportional to
How many gram-equivalents of $ NaOH $ are required to neutralise $ 25 \,cm^3 $ of a decinormal $ HCl $ solution?
Keto-enol tautomerism is not observed in
The molecule which has zero dipole moment is
Treatment of acetaldehyde with ethyl magnesium bromide and subsequent hydrolysis gives
Among the following, the formula of saturated fatty acid is
The correct order of dehydration of alcohols is
The units of rate constant for first order reaction are
Which is not an example of common ion effect?
Peroxide ion ___________ a) is diamagnetic b) has five completely filled antibonding molecular orbitals c) is isoelectronic with neon d) has bond order one. Which one of these is correct?
The rate constant for a first order reaction is $60 \,s^{-1}$. How much time it will take to reduce the concentration of the reactant to $1 / 10^\text{ th}$ of its initial value?
The equivalent weight of $H _{3} PO _{2}$, when it disproportionates into $PH _{3}$ and $H _{3} PO _{3}$ is
Oxidation state of $Fe$ in $Fe ( CO )_{5}$ is zero. $EAN$ of $Fe$ in this complex is $36$.