List of top Questions asked in KCET

The number of atoms in 4.5 g of a face-centred cubic crystal with edge length 300 pm is:

The first chlorinated organic insecticide prepared is:

MnO exhibits:

0.48 g of an organic compound on complete combustion produced 0.22 g of CO₂. The percentage of C in the given organic compound is:

In the given sequence of reactions, identify ‘P’, ‘Q’ and ‘S’ respectively:

Which one of the following properties is generally not applicable to ionic hydrides?

Which of the following halides cannot be hydrolysed?

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

In the reaction between moist SO₂ and acidified permanganate solution:

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

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

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.

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

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:

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

In the following scheme of reaction.

X, Y and Z respectively are:

In the reaction: \(\text{Aniline} \xrightarrow{\text{NaNO}_2/\text{dil. HCl}} P \xrightarrow{\text{Phenol/NaOH}} Q\)

PCC is:

Biologically active adrenaline and ephedrine used to increase blood pressure contain

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:

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

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:

The compound is

Which one of the following is a cationic detergent?