Chemistry-
General
Easy
Question
The outermost shell electronic configuration 3d5, 4s2 represents
- Ca
- Mn
- Te
- Zn
The correct answer is: Mn
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Which electronic configuration represents a transition element?
Which electronic configuration represents a transition element?
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The no. of d-electrons present in Fe2+ ions is
The no. of d-electrons present in Fe2+ ions is
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100 ml of 0.3 N HCl solution were mixed with 200 ml of 0.6 N H2SO4 solution. The final normality of mixture is
100 ml of 0.3 N HCl solution were mixed with 200 ml of 0.6 N H2SO4 solution. The final normality of mixture is
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How many moles of electron is needed for the reduction of each mole of Cr in the reaction.
CrO5 + H2SO4 
Cr2(SO4)3 + H2O + O2
How many moles of electron is needed for the reduction of each mole of Cr in the reaction.
CrO5 + H2SO4 Cr2(SO4)3 + H2O + O2
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125 ml of Na2CO3 solution requires 100 ml of 0.1 N HCl to reach end point with phenolphthalein as indicator. Molarity of resulting solution with respect to 
ion
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Aqua Regia is -
Aqua Regia is -
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The colour of the solid produced by adding SnCl2 in excess to a solution of HgCl2 is
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A crystalline solid dissolves in water to give colourless solution. On addition of aqueous silver nitrate a yellow precipitate is formed. The solid is most likely to be
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The deep blue colour obtained on adding K3Fe(CN)6 to ferrous sulphate is due to the formation of
The deep blue colour obtained on adding K3Fe(CN)6 to ferrous sulphate is due to the formation of
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Hydrolysis of one mole of peroxy dissulphuric acid produces
Hydrolysis of one mole of peroxy dissulphuric acid produces
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The correct order of size among Cl, Cl+ and Cl– is
The correct order of size among Cl, Cl+ and Cl– is
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The electronegativity of the following elements increases in the order
The electronegativity of the following elements increases in the order
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The correct order of size among Cl, Cl+ and Cl– is
The correct order of size among Cl, Cl+ and Cl– is
Chemistry-General
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Which is least soluble in water
Which is least soluble in water
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The rate constant for the hydrolysis reaction of an ester by dilute acid is 0.6931 x 10-3 S-I. The time required to change the concentration of ester from 0.04 M to 0.01 Mis:
The rate constant for the hydrolysis reaction of an ester by dilute acid is 0.6931 x 10-3 S-I. The time required to change the concentration of ester from 0.04 M to 0.01 Mis:
Chemistry-General
