List of top Chemistry Questions asked in MHT CET

Identify the substrate ' A ' in the following conversion.
A $\xrightarrow[\text{H}_3\text{O}^+]{\text{AlH}(i-\text{Bu})_2}$ Pent-3-enal}
Calculate the number of atoms present in 1 g of an element if it forms fcc unit cell structure. [$\rho \times \text{a}^3 = 6.8 \times 10^{-22} \text{ g}$]}
Calculate the enthalpy of solution of potassium chloride if its $\Delta_{\text{L}\text{H} = 700 \text{ kJ mol}^{-1}$ and $\Delta_{\text{hyd}} \text{ H} = -680 \text{ kJ mol}^{-1}$
Which of the following alkenes does NOT exhibit cis-trans isomerism?
A weak monoacidic base dissociates to 1.5% in 0.001 M solution at 298 K . Calculate the dissociation constant of weak base.
Which of the following is the molecular formula of halous acid of chlorine?
A gaseous mixture of O$_2$ and CH$_4$ are in the ratio 1 : 4 by mass. Find the ratio of their molecules.
A compound of Xe and F is found to have atomic ratio Xe : F as 0.4 : 2.4, Find the oxidation number of Xe ?
Calculate the relative lowering of vapour pressure of solution containing 3 g urea in 50 g water. [molar mass of urea = 60 g mol$^{-1}$ ]}
What is the difference in molar masses of Undecane and Decane?
Which of the following is effectively used instead of DDT?
Identify the type of defect in brass alloy.
Identify the element having highest ionisation enthalpy ( $IE_1$ ) from following.
Identify the reagent used in the following reaction.
Benzoic acid $\xrightarrow{\text{Reagent}$ Benzoyl chloride + Phosphorus oxychloride + Hydrogen chloride}
Which amino acid from following contains —CH$_3$ as side chain?
If $\text{E}^o \left( \text{Al}_{(\text{eq})}^{+3} \mid \text{Al}_{(\text{s})} \right) = -1.66 \text{ V}$. What is potential of $\text{Al}_{(\text{s})} \longrightarrow \text{Al}^{+3}(0 \cdot 1\text{M}) + 3\text{e}^-$ at 298 K ?
Which from following medicinal properties is exhibited by curcumin?
Which is the correct increasing order of atomic radii of Na, K, Mg, Rb ?
If $\text{E}^\circ \left( \text{Fe}_{(\text{aq})}^{+2} \mid \text{Fe}_{(\text{s})} \right) = -0.44 \text{ V}$ and $\text{E}^\circ \left( \text{Sn}_{(\text{aq})}^{+2} \mid \text{Sn}_{(\text{s})} \right) = -0.14 \text{ V}$
What is standard emf of cell containing the two electrodes?
Calculate the volume occupied by a particle in fcc unit cell if volume of unit cell is $1.6 \times 10^{-23} \text{ cm}^3$.
Which of the following molecules contains maximum number of electrons in antibonding molecular orbitals?
Identify the reaction in which entropy change is positive ($\Delta S>0$).
Which of the following has highest reactivity towards nucleophilic substitution reaction involving cleavage of C — Cl bond?
In a reaction,
$(\text{CH}_3)_2\text{CHMgBr} + \text{CO}_2 \xrightarrow[\text{ether}]{\text{dry}} \text{A} \xrightarrow[\text{dilHCl}]{\text{H.OH}} \text{B}$.
Find the product ' B ' of above reaction.
Identify conjugate acid-base pair from following equilibrium reaction.
$\text{HSO}_{3(\text{aq})}^- + \text{H}_3\text{O}_{(\text{aq})}^+ \rightleftharpoons \text{H}_2\text{SO}_3 + \text{H}_2\text{O}$