List of top Questions asked in KCET

A pendulum oscillates simple harmonically and only if
(I) the sizer of the bob of pendulum is negligible in comparison with the length of the pendulum
(II) the angular amplitude is less than 10°.

The circuit given represents which of the logic operations ?

If the area of the parallelogram with \(\vec{a}\) and \(\vec{b}\) as two adjacent sides is 15 sq.units then the area of the parallelogram having \(3\vec{a}+2\vec{b}\) and \(\vec{a}+3\vec{b}\) as two adjacent sides in sq.units is

The number of six membered and five membered rings in Buckminster Fullerence respectively is

Primary structure in a nucleic acid contains bases as G A T G C …..… The chain which is complementary to this chain is

The property of the alkaline earth metals that increases with their atomic number is

RNA and DNA are chiral molecules, their chirality is due to the presence of

A hydrocarbon A (C₄H₈) on reaction with HCl gives a compound B (C₄H₉Cl) which on reaction with 1 mol of NH₃ gives compound C (C₄H₁₀N). On reacting with NaNO₂ and HCl followed by treatment with water, compound C yields an optically active compound D. The D is

Permanent hardness cannot be removed by

The method by which aniline cannot be prepared is

The product B is

Which is the most suitable reagent for the following conversion ?

Which of the following is not true for oxidation ?

A and C are

The reagent which can do the conversion CH₃COOH → CH₃ - CH₂ - OH is

A, B and C respectively are

K_a values for acids H₂SO₃, HNO₂, CH₃COOH and HCN are respectively 1.3 × 10^-2, 4 × 10^-4, 1.8 × 10^-5 and 4 × 10^-10, which of the above acids produces stronger conjugate base in aqueous solution ?

In set of reactions, identify D

A compound ‘A’ (C₇H₈O) is insoluble in NaHCO₃ solution but dissolve in NaOH and give a characteristic colour with neutral FeCl₃ solution. When treated with Bromine water compound ‘A’ forms the compound B with the formula C₇H₅OBr₃. ‘A’ is

An organic compound ‘X’ on treatment with PCC in dichloromethane gives the compound Y. Compound ‘Y’ reacts with I₂ and alkali to form yellow precipitate of triiodomethane. The compound X is

For the reaction A(g) + B(g) ⇌ C(g) + D(g); ΔH = -QKJ
The equilibrium constant cannot be disturbed by

The product ‘A’ gives white precipitate when treated with bromine water. The product ‘B’ is treated with Barium hydroxide to give the product C. The compound C is heated strongly to form product D. The product D is

The major product of the following reaction is CH₂ = CH - CH₂ - OH product

The order of reactivity of the compounds C₆H₅CH₂Br, C₆H₅CH(C₆H₅)Br, C₆H₅CH(CH₃)Br and C₆H₅C(CH₃)(C₆H₅)Br in S_N² reaction is

A car manufacturing factory has two plants X and Y. Plant X manufactures 70% of cars and plant Y manufactures 30% of cars. 80% of cars at plant X and 90% of cars at plant Y are rated as standard quality. A car is chosen at random and is found to be standard quality. The probability that it has come from plant X is