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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 :
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Dec 30, 2021
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Some basic concepts in chemistry
by
kritika
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1
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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):
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Dec 30, 2021
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Some basic concepts in chemistry
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kritika
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2
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The correct option for free expansion of an ideal gas under adiabatic condition is:
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Dec 30, 2021
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Some basic concepts in chemistry
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kritika
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The calculated spin only magnetic moment of \(C r^{2+}\) ion is :
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Dec 30, 2021
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Some basic concepts in chemistry
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kritika
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90.1k
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On electrolysis of dil.sulphuric acid using Platinum (Pt) electrode, the product obtained at anode will be:
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Dec 30, 2021
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Some basic concepts in chemistry
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kritika
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3
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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 :
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Dec 30, 2021
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Some basic concepts in chemistry
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. Identify the correct statements from the following:
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Dec 30, 2021
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Some basic concepts in chemistry
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kritika
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. Find out the solubility of \(\mathrm{Ni}(\mathrm{OH})_{2}\) in \(0.1 \mathrm{M} \mathrm{NaOH} .\) Given that the ionic product of \(\mathrm{Ni}(\mathrm{OH})_{2}\) is \(2 \times 10^{-15}\)
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Dec 30, 2021
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Some basic concepts in chemistry
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Q1. Identify a molecule which does not exist.
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Dec 30, 2021
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Some basic concepts in chemistry
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Q. I volt is equivalent to
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Dec 30, 2021
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Biology
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Q. Algae have cell wall made up of
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Biology
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Q. Which of the following is false?
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Biology
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Q. Which of the following physical quantity unit is not a fundamental unit?
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Biology
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Q. Botanical name or scientific name of banana is
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Biology
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Q. Male gametophyte in angiosperms produces
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Biology
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Q. Identify the correct statement from the following:
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Some basic concepts in chemistry
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Q. Root hairs develop from the region of :
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Some basic concepts in chemistry
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Q. Sertoli cells are regulated by the pituitary hormone known as-
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Dec 30, 2021
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Some basic concepts in chemistry
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Q. Which of the following is not correct?
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Dec 30, 2021
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Some basic concepts in chemistry
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Q. Which of the following is a redox reaction?
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Some basic concepts in chemistry
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