Q: Match List I with List II: array |l|l|l|l| & List - I (Ion) & & List - II (Group Number in Cation Analysis) \\ A . & Co ^ 2+ & (i) & Group-I \\ B. & Mg ^ 2+ & (ii) & Group-III \\ C. & Pb ^ 2+ & (iii)

array |l|l|l|l| A. & Co ^ 2+ & III. & Group-IV \\ B. & Mg ^ 2+ & IV. & Group-VI \\ C. & Pb ^ 2+ & I. & Group-I \\ D. & Al ^ 3+ & II. & Group-III \\ array

Q: Given below are certain cations. Using inorganic qualitative analysis, arrange them in increasing group number from 0 to VI . A. Al ^ 3+ B. Cu ^ 2+ C. Ba ^ 2+ D. Co ^ 2+ E. Mg ^ 2+ Choose the correct

array |c|c| Group & Cations \\ Group-II & Cu ^ 2+ \\ Group-III & Al ^ 3+ \\ Group-IV & Co ^ 2+ \\ Group-V & Ba ^ 2+ \\ Group-VI & Mg ^ 2+ \\ array The correct order of group number of ions is ( B ) Cu ^ 2+ ( A ) Al ^ 3+ ( D ) Co ^ 2+ ( C ) Ba ^ 2+ ( E ) Mg ^ 2+ The correct order is B, A, D, C, E

Question 1

In a test tube containing a salt, a few drops of dilute H _2 SO _4 was added, which gave colourless vapours having the smell of vinegar. The vapours turned the blue litmus paper red. Identify the corr

Accepted Answer

When a salt containing the acetate anion ( CH _3 COO ^ - ) is treated with dilute H _2 SO _4, acetic acid ( CH _3 COOH ) is formed. 2 CH _3 COO ^ - + H _2 SO _4 2 CH _3 COOH + SO _4^ 2- Acetic acid vapours are colourless and have a characteristic smell of vinegar. Being acidic in nature, these vapours turn blue litmus paper red. Sulphide ( S ^ 2- ) gives H _2 S gas which has a rotten egg smell. Sulphate ( SO _4^ 2- ) does not react with dilute H _2 SO _4. Carbonate ( CO _3^ 2- ) gives CO _2 gas

Question 2

Match List I with List II: array |l|l|l|l| & List - I (Ion) & & List - II (Group Number in Cation Analysis) \ A . & Co ^ 2+ & (i) & Group-I \ B. & Mg ^ 2+ & (ii) & Group-III \ C. & Pb ^ 2+ & (iii)

Accepted Answer

array |l|l|l|l| A. & Co ^ 2+ & III. & Group-IV \ B. & Mg ^ 2+ & IV. & Group-VI \ C. & Pb ^ 2+ & I. & Group-I \ D. & Al ^ 3+ & II. & Group-III \ array

Question 3

Given below are certain cations. Using inorganic qualitative analysis, arrange them in increasing group number from 0 to VI . A. Al ^ 3+ B. Cu ^ 2+ C. Ba ^ 2+ D. Co ^ 2+ E. Mg ^ 2+ Choose the correct

Accepted Answer

array |c|c| Group & Cations \ Group-II & Cu ^ 2+ \ Group-III & Al ^ 3+ \ Group-IV & Co ^ 2+ \ Group-V & Ba ^ 2+ \ Group-VI & Mg ^ 2+ \ array The correct order of group number of ions is ( B ) Cu ^ 2+ ( A ) Al ^ 3+ ( D ) Co ^ 2+ ( C ) Ba ^ 2+ ( E ) Mg ^ 2+ The correct order is B, A, D, C, E

Question 4

Match List-I with List-II : Choose the correct answer from the options given below:

Accepted Answer

Answer option index: 3

Question 5

Match List-I will List-II: Choose the correct answer from the options given below:

Accepted Answer

Correct Match : A - II, B-III, C-IV, D-I

Practical Chemistry — Previous Year Questions & Solutions