List of top Chemistry Questions asked in KCET

Given E0Fe+3/Fe+2=+0.76V and E0½2l-=+0.55V. The equilibrium constant for the reaction taking place in galvanic cell consisting of above two electrodes is [\(\frac{2.303RT}{F}\)=0.06]
A metal crystallises in face centred cubic structure with metallic radius 2​A∘. The volume of the unit cell (in m3) is
Silicon doped with gallium forms
Which one of the following is an isotonic pair of solution ?
A metal exists as an oxide with formula M0.96​O. Metal M can exist as M+2 and M+3 in its oxide M0.96​O. The percentage of M+3 in the oxide is nearly
Identify ‘X’ in the following reaction
Identify ‘X’ in the following reaction
Which of the following is Not a green house gas?
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 oxide of potassium that does not exist is
Which of the following is not a pair of functional isomers?
The mental that produces H2 with both dil HC/ and NaOH (aq) is
The percentage s-character of the hybrid orbitals 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 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 oxidation number of nitrogen atom in MH4NO3 are
Which of the following has the lowest boiling point?
The time required for $60\%$ completion of a first order reaction is $50$ min. The time required for $93.6\%$ completion of the same reaction will be
The conjugate base of $NH_3$ is
The last element of the $p$-block in $6^{th}$ period is represented by the outer most electronic configuration
Which of the following monomers can undergo condensation polymerization?
$C_1-C_4$ glycosidic bond is NOT found in
Hinsberg's reagent is
The steps involved in the conversion of propan -$2$-ol to propan -$1$-ol are in the order
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
Phosphorus pentachloride