List of top Chemistry Questions asked in KCET

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.

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

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:

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:

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

PCC is:

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:

Biologically active adrenaline and ephedrine used to increase blood pressure contain

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

Which one of the following is a cationic detergent?

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

$\alpha$-D-(+)-glucose and $\beta$-D-(+)-glucose are:

The compound is

The type of linkage present between nucleotides is:

Propanone and Propanal are:

The biodegradable polymer obtained by polymerisation of Glycine and Aminocaproic acid is:

Which of the following set of polymers are used as fibre?
(i) Teflon
(ii) Starch
(iii) Terylene
(iv) Orlon

A pair of compounds having the same boiling points are

The heating of phenyl methyl ether with HI produces an aromatic compound A which on treatment with con. HNO₃ gives B. A and B respectively are,

Temperature of 25 ºC in Fahrenheit and Kelvin scale respectively are

In which one of the following pairs, both the elements does not have (n-1)d¹⁰ns² configuration in its elementary state?

A weak acid with pKa 5.9 and weak base with pKb 5.8 are mixed in equal proportions. pH of the resulting solution is