List of top Chemistry Questions asked in KCET

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

Propanone and Propanal are:

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

The type of linkage present between nucleotides is:

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

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?

The compound is

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

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

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

In solid state, PCl₅ is a/an

For Freundlich adsorption isotherm, a graph of log (x/m) Vs. log (P) gives a straight line. The slope of line and its Y-axis intercept respectively are

Aqueous solution of raw sugar when passed over beds of animal charcoal, it becomes colourless. Pick the correct set of terminologies that can be used for the above example.

	Adsorbent	Adsorbate	Process
(1)	Solution of Sugar	Animal Charcoal	Soprtion
(2)	Animal Charcoal	Solution of Sugar	Absorption
(3)	Animal Charcoal	Colouring Substance	Adsorption
(4)	Colouring Substance	Animal Charcoal	Adsorption

Which of the following compound does not give dinitrogen on heating ?

For the formation of which compound in Ellingham diagram ΔG° becomes more and more negative with increase in temperature ?

The reducing agent in the given equations :
\(4\ Ag_{(s)}+8\ CN_{(aq)}^-+2H_2O_{(aq)}+O_{2_{(g)}}\rightarrow4[Ag(CN)_2]_{(aq)}^-+4\ OH_{(aq)}^-\)
\(2[Ag(CN)_2]_{(aq)}^-+Zn_{(s)}\rightarrow[Zn(CN)_4]_{(aq)}^{2-}+2Ag_{(s)}\)

When FeCl₃ is added to excess of hot water gives a sol ‘X’. When FeCl₃ is added to NaOH_(aq) solution, gives sol ‘Y’.
X and Y formed in the above processes respectively are

Consider the following 4 electrodes
A : Ag⁺ (0.0001 M)/Ag_(s) ;  B : Ag⁺ (0.1 M) / Ag_(s)
C : Ag⁺ (0.01 M)/Ag_(s) ;        D : Ag⁺ (0.001 M) / Ag_(s); \(E^{\degree}_{Ag^{+/Ag}}\)=+ 0.80 V
Then reduction potential in volts of the electrodes in the order

During the electrolysis of brine, by using inert electrodes,

The rate constants k₁ and k₂ for two different reactions are 10¹⁶ × e^-2000/T and 10¹⁵ × e^-1000/T respectively. The temperature at which k₁ = k₂ is :

For a reaction, the value of rate constant at 300 K is 6.0 ×10⁵ s^-1. The value of Arrhenius factor A at infinitely high temperature is :

In which one of the following reactions, rate constant has the unit mol L^-1 s^-1 ?

The resistance of 0.1 M weak acid HA in a conductivity cell is 2 × 10³ Ohm. The cell constant of the cell is 0.78 C m^-1 and \(\lambda_{m}^{\degree}\) of acid HA is 390 S cm² mol^-1. The pH of the solution is

A metal crystallises in a body centered cubic lattice with the metallic radius \(\sqrt3 Å\). The volume of the unit cell in m³ is