Archives

Choose the correct option for the below-given statements.

Statement I: In Bohr’s model, the velocity of electrons increases with a decrease in the positive charge of the nucleus as electrons are not held tightly.

Statement II: Velocity decreases with an increase in principal quantum number.

a. Statement I is correct & Statement II is correctb. Statement I is correct & Statement II is incorrectc. Statement I is incorrect &... View Article

Which of the following will dissolve in water and give colour?

a. Cu2Cl2b. CuCl2c. AgBrd. ZnCl2Solution:Answer: (b)CuCl2 dissolves in water and gives coloured solutions.... View Article

Which compound will have an equal freezing point as 0.1 Methanol?

a. 0.1 M Na2SO4b. 0.1 M Ba3(PO4)2c. 0.1 M HCld. 0.1 M C6H12O6Solution:Answer: (d)ΔTf = iKfmFor very dilute solutions, we can assume... View Article

Choose the correct option for the statements given below – Chemistry Problem

Question: Choose the correct option for the statements given below. Statement-I: Ellingham diagram is used to check which metal compound is to... View Article

Choose the ion whose aqueous solution is violet coloured?

a. [FeCN6]4-b. [Fe(SCN)3]c. [Fe(CN)5NOS]4-d. [Fe(CN)6]3-Solution:Answer: (c)Violet colour is given by complex ions [Fe(CN)5NOS]4-. It is the test... View Article

(A) and (B) respectively will be

Solution:Answer: (a)In water, bromine is ionized to a greater extent and hence tri bromination occurs. InCarbon disulphide, bromine ionizes to a... View Article

Find the product – Solve Chemistry Problem

Question: Find the product. Solution:Answer: (a)... View Article

For adsorption of a gas

a. ΔH < 0, ΔS < 0b. ΔH < 0, ΔS > 0c. ΔH > 0, ΔS > 0d. ΔH = 0, ΔS >... View Article

Predict the major product for the following reaction:

Solution:Answer: (d)... View Article

When an excess of CO₂is passed through lime water then what will be the sequence of the product?

a. Ca(HCO3)2,CaOb. CaO,Ca(HCO3)2c. CaCO3,Ca(HCO3)2d. Ca(HCO3)2,CaOSolution:Answer: (c)Ca(OH)2 (aq) + CO2(g) → CaCO3(s) + H2O(l)CaCO3(s) +... View Article

M	T	W	T	F	S	S
				1	2	3
4	5	6	7	8	9	10
11	12	13	14	15	16	17
18	19	20	21	22	23	24
25	26	27	28	29	30	31