List of top Questions asked in KCET

The female sex hormone responsible for developing secondary female characteristics and menstrual cycle control is:

In the following scheme of reaction.

X, Y and Z respectively are:

Propanone and Propanal are:

8.8 g of monohydric alcohol reacts with ethyl magnesium iodide, releasing 2240 $cm^3$ of ethane at STP. This monohydric alcohol forms a carbonyl compound that answers Tollen’s test. The alcohol is:

Sodium ethanoate on heating with soda lime gives ‘X’. Electrolysis of aqueous solution of sodium ethanoate gives ‘Y’. ‘X’ and ‘Y’ respectively are:

When a tertiary alcohol ($C_4​H_{10}​O$) reacts with 20% $H_3​PO_4$​ at 358 K, it gives a compound ($C_4​H_8​$) as the major product. The IUPAC name of this compound is:

But-1-yne on reaction with dilute H2​SO4​ in the presence of Hg2+ ions at 333K gives:

PCC is:

Biologically active adrenaline and ephedrine used to increase blood pressure contain

On treating 100 mL of 0.1 M aqueous solution of the complex CrCl₃.6H₂O with excess of AgNO₃, 2.86 g of AgCl was obtained. The complex is:

The complex compounds [Co(NH₃)₅SO₄]Br and [Co(NH₃)₅Br]SO₄ are:

Which one of the following pairs will show positive deviation from Raoult's Law?

Which of the following statements are true about [CoF₆]³⁻ ion?
I) The complex has octahedral geometry.
II) Coordination number of Co is 3 and oxidation state is +6.
(III) The complex is sp³d² hybridised.
(IV) It is a high spin complex.

A haloalkane undergoes $S_{N^2}$ or $S_{N^1}$ reaction depending on:

A current of 3 A is passed through a molten calcium salt for 1 hr 47 min 13 sec. The mass of calcium deposited is:

2-Methylpropane can be prepared by Wurtz reaction. The haloalkanes taken along with metallic sodium and dry ether are:

The value of 'A' in the equation \( \lambda_m = \lambda_m^0 - A\sqrt{C} \) is same for the pair

In the analysis of III group basic radicals of salts, the purpose of adding NH₄Cl (solid) to NH₄OH is:

Solubility product of CaC₂O₄ at a given temperature in pure water is 4 × 10⁻⁹ mol²/L². Solubility of CaC₂O₄ at the same temperature is:

In the reaction between moist SO₂ and acidified permanganate solution:

For the reaction PCl5​→PCl3​+Cl2​, the rate and rate constant are 1.02×10−4mol L−1s−1 and 3.4×10−5s−1, respectively, at a given instant. The molar concentration of PCl5​ at that instant is:

Which one of the following does not represent the Arrhenius equation?

Which one of the following nitrates will decompose to give NO₂ on heating?