List of top Chemistry Questions asked in KCET

The mental that produces H2 with both dil HC/ and NaOH (aq) is
A Lewis acid 'X' formed by the reaction of BF3 with LiA/H4 in ether medium to gives a highly toxic gas. This gas when heated with NH3 gives a compound commonly known as inorganic benzene. The gas is
The oxidation number of nitrogen atom in MH4NO3 are
When the same quantity of heat is absorbed by a system at two different temperatures T1​ and T2​, such that T1​>T2​, change in entropies are ΔS1​ and ΔS2​ respectively. Then
The formal charge on central oxygen atom in ozone is
The percentage s-character of the hybrid orbitals in\( No^+_2\), \(NO^-_3\) and\( NH^+_4\) respectively are
The formal charge on central oxygen atom in ozone is
Given $E^0_{Fe^{+3}/Fe^{+2}} = +0.76V$ and $E^0_{I_2/I^-} = +0.55V.$ The equilibrium constant for the reaction taking place in galvanic cell consisting of above two electrodes is $\left[\frac{2.303RT}{F}=0.06\right]$
A metal exists as an oxide with formula $M_{0.96}O$. Metal $M$ can exist as $M^{2+}$ and $M^{3+}$ in its oxide $M_{0.96}O$. The percentage of $M^{3+}$ in the oxide is nearly
The percentage of $s$-character in the hybrid orbitals of nitrogen in $NO^+_2, NO^-_3$ and $NH_4^+$ respectively are
When the same quantity of heat is absorbed by a system at two different temperatures $T_1$ and $T_2$, such that $T_1 > T_2$, change in entropies are $\Delta S_1$ and $\Delta S_2$ respectively. Then
The oxidation number of nitrogen atoms in $NH_4NO_3$ are
Which of the following is NOT a green house gas?
Which of the following is not a greenhouse gas?
The metal that products $H_2$ with both dil $HCl$ and $NaOH (aq)$ is
Which of the following pair of solutions is isotonic ?
Which of the following is NOT a pair of functional isomers?
Relative lowering of vapour pressure of a dilute solution of glucose dissolved in 1 kg of water is 0.002. The molality of the solution is
Addition of excess of AgNO3 to an aqueous solution of 1 mole of PdCl2. 4NH3 gives 2 moles of AgCl. The conductivity of this solution corresponds to
Give: E0Mn+7|Mn+2 = 1.5 V and E0Mn+4|Mn+2 = 1.2 V, then E0Mn+7|Mn+4 is
Match the following pKa values:
Eutrophication causes
According to the VSEPR theory, the shape of $ClO_3^{-}$ would be
1 L of 2 M CH3COOH is mixed with 1 L of 3M C2H5OH to form an ester. The rate of the reaction with respect to the initial rate when each solution is diluted with an equal volume of water will be
Which of the following orders are correct against the property given? I) dipole moment : $NF_3 > NH_3 >BF_3$ II) Covalent bond length : $C - O > N - O > O - H$ III) Bond order : $C_2 > B_2 > He_2$