Questions by kritika

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151 answers

Q. Which of the following is most acidic?

asked Dec 30, 2021 in Some basic concepts in chemistry

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3 answers

Q. Among the following, the linear molecule is

asked Dec 30, 2021 in Some basic concepts in chemistry

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4 answers

Q. Opening and closing of stomata is due to the :-

asked Dec 30, 2021 in Biology

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3 answers

Q. Which one of the following is an example of ex-situ conservation ?

asked Dec 30, 2021 in Biology

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3 answers

Q. The five kingdom system of classification was proposed by

asked Dec 30, 2021 in Biology

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1 answer

Q. The first phase of translation is:

asked Dec 30, 2021 in Some basic concepts in chemistry

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3 answers

The following metal ion activates many enzymes, participates in the oxidation of glucose to produce ATP and with Na, is responsible for the transmission of nerve signals.

asked Dec 30, 2021 in Some basic concepts in chemistry

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3 answers

. Which of the following is not correct about carbon monoxide?

asked Dec 30, 2021 in Some basic concepts in chemistry

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3 answers

\(\mathrm{HCl}\) was passed through a solution of \(\mathrm{CaCl}_{2}, \mathrm{MgCl}_{2}\) and \(\mathrm{NaCl}\). Which of the following compound(s) crystallise(a)?

asked Dec 30, 2021 in Some basic concepts in chemistry

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2 answers

Which of the following is the correct order of increasing field strength of ligands to form coordination compounds?

asked Dec 30, 2021 in Some basic concepts in chemistry

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3 answers

Identify the correct statement from the following:

asked Dec 30, 2021 in Some basic concepts in chemistry

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1 answer

A mixture of \(N_{2}\) and \(A r\) gases in a cylinder contains \(7 g\) of \(N_{2}\) and \(8 g\) of \(A r\). If the total pressure of the mixture of the gases in the cylinder is 27 bar, the partial pressure of \(N_{2}\) is: [Use atomic masses (in g \(\mathrm{mol}^{-1}\) ) : \(N=14, A r=40\) ]

asked Dec 30, 2021 in Some basic concepts in chemistry

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2 answers

An increase in the concentration of the reactants of a reaction leads to change in :

asked Dec 30, 2021 in Some basic concepts in chemistry

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3 answers

Paper chromatography is an example of :

asked Dec 30, 2021 in Some basic concepts in chemistry

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30 answers

The number of Faradays(F) required to produce \(20 \mathrm{~g}\) of calcium from molten \(\mathrm{CaCl}_{2}\) (Atomic mass of \(\mathrm{CaCl}_{2} \mathrm{~g} \mathrm{~mol}^{-1}\) ) is :

asked Dec 30, 2021 in Some basic concepts in chemistry

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1 answer

The freezing point depression constant \(\left(K_{f}\right)\) of benzene is \(5.12 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}\). The freezing point depression for the solution of molality \(0.078 \mathrm{~m}\) containing a non-electrolyte solute in benzene is (rounded off upto two decimal places):

asked Dec 30, 2021 in Some basic concepts in chemistry

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2 answers

The correct option for free expansion of an ideal gas under adiabatic condition is:

asked Dec 30, 2021 in Some basic concepts in chemistry

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1 answer

The calculated spin only magnetic moment of \(C r^{2+}\) ion is :

asked Dec 30, 2021 in Some basic concepts in chemistry

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1 answer

On electrolysis of dil.sulphuric acid using Platinum (Pt) electrode, the product obtained at anode will be:

asked Dec 30, 2021 in Some basic concepts in chemistry

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3 answers

Hydrolysis of sucrose is given by the following reaction. Sucrose \(+\mathrm{H}_{2} \mathrm{O} \rightleftharpoons\) Glucose \(+\) Fructose If the equilibrium constant \(\left(K_{c}\right)\) is \(2 \times 10^{13}\) at \(300 \mathrm{~K}\), the value of \(\Delta_{r} G^{\ominus}\) at the same temperature will be :

asked Dec 30, 2021 in Some basic concepts in chemistry

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