Browse and search thousands of solved questions for your preparation.
Free questions with full explanations — locked behind signup to protect quality.
Which one of the following pairs is isostructural (i.e., having the same shape and hybridization)?
An electronic configuration that has maximum difference between II and III ionization potential is:
Liquid hydrocarbons can be converted to a mixture of gaseous hydrocarbons by:-
Given below are two statements: Statement I: Aniline does not undergo Friedel-Crafts alkylation reaction. Statement II: Aniline cannot be prepared through Gabriel synthesis.
Sucrose on hydrolysis gives
A molecule/ion among the following species that does not exist under normal conditions is:
Reaction between benzaldehyde and acetophenone in presence of dilute NaOH is known as
The correct order of dissociation energy of $N_{2}$ and $N_{2}^{+}$ is:
The stability of $Cu^{2+}$ is greater than that of $Cu^+$ salts in an aqueous solution due to:
Among the following, isoelectronic species are:
$CH_2OH \cdot CH_2OH$ (Ethylene glycol) on heating with periodic acid gives:
Among the elements Ca, Mg, P and Cl, the correct order of increasing atomic radii is:
Which of the following is a cationic detergent?
From the following pairs of ions which one is not an iso-electronic pair?
The cell reaction of an electrochemical cell is $Cu^{2+}(C_1) + Zn \rightarrow Cu + Zn^{2+}(C_2)$. The change in free energy will be the function of:
The right option for the statement "Tyndall effect is exhibited by", is :
Identify 'X' in the following reaction.
Decreasing order of stability of $\text{O}_2$, $\text{O}_2^-$, $\text{O}_2^+$ and $\text{O}_2^{2-}$ is:
The reaction of toluene with $Cl_2$ in presence of $FeCl_3$ gives ‘X' and the reaction in presence of light gives 'Y'. 'X' and 'Y' are respectively:
In hydrogen atom, what is the de Broglie wavelength of an electron in the second Bohr orbit? [Given that Bohr radius, $a_0 = 52.9$ pm]