List of top Chemistry Questions

The number of unpaired electrons calculated in $[Co (NH_3)_6]^{3+}$ and $Co (F_6)Z^{3-}$ are
The oxidation number of oxygen in $KO _{3}, Na _{2} O _{2}$ is
The IUPAC name of the given compound $\left[ Co \left( NH _{3}\right)_{5} Cl \right] Cl _{2}$ is
The magnetic moment of a salt containing $Zn ^{2+}$ ion is
Which of the following sets consists only of essential amino acids ?
$Cl - P - Cl$ bond angles in $PCl_5$ molecule are
The continuous phase contains the dispersed phase throughout, Example is
Alkyl cyanides undergo Stephen reduction to produce
$2N HCl$ solution will have same molar concentration as a
Which one of the following chlorohydrocarbons readily undergoes solvolysis?
Methoxy methane and ethanol are
$50 \, mL $ of $H_2O$ is added to $50 \, mL$ of $1 \times 10^{-3}\, M$ barium hydroxide solution. What is the pH of the resulting solution?
Which one of the following aqueous solutions will exhibit highest boiling point?
Which of the following statements are correct for alkali metal compounds? (i) Superoxides are paramagnetic in nature. (ii) The basic strengths of hydroxides increases down the group. (iii) The conductivity of chlorides in their aqueous solutions decreases down the group. (iv) The basic nature of carbonates in aqueous solutions is due to cationic hydrolysis.
The velocities of two particles $A$ and $B$ are $0.05$ and $0.02\, ms^{-1}$ respectively. The mass of $B$ is five times the mass of $A$. The ratio of their de- Broglie's wavelength is
Identify $A$ and $B$ in the following reaction $CH _{3}- CH _{3} \stackrel{B}{\leftarrow}{B} CH _{3} COOH \xrightarrow{A} CH _{3} CH _{2} OH$
What is the temperature at which the kinetic energy of $0.3$ moles of helium is equal to the kinetic energy of $0.4$ moles of argon -at $400\, K$ ?
The correct stability order for the following species is
Number of monochloro derivatives obtained when neo-pentane is chlorinated, is
Following statements regarding the periodic trends of chemical reactivity of the alkali metals and the halogens are given. Which of these statements gives the correct picture ?
When oxyhaemoglobin changes to de-oxyhaenioglobin, $Fe^{2+}$ ion changes from
The order of electron affinity of halogens is
Electrolysis of dilute aqueous $NaCl$ solution was carried out by passing $10\, mA$ current. The time required to liberate $0.01\, mole$ of $H_2$ gas at the cathode is $(1 \,F\,= 96500 \,C \,mol^{-1})$
The correct statement(s) about the compound given below is/are
What is the equilibrium expression for the reaction, $ {{P}_{4}}(s)+5{{O}_{2}}(g) \rightleftharpoons {{P}_{4}}{{O}_{10}}(s)? $