Hot concentrated sulphuric acid is a moderately strong oxidising agent. Which of the following reaction doe not show oxidising behaviour?
(a) Cu + 2H2SO4 CuSO4 + SO2 + 2H2O
(b) 3S + 2H2SO4 3SO2 + 2H2O
(c) C + 2H2SO4 CO2 + 2SO2 + 2H2O
(d) CaF2 + H2SO4 CaSO4 + 2HF
Among the following, which one is a wrong statement?
(1) PH5 and BiCl5 do not exist
(2) ρp-dp bonds are present in SO2
(3) SeF4 and CH4 have same shape
(4) has bent geometry
What does heating copper with concentrated HNO3 produce?
1. Cu(NO3)2 and NO
2. Cu(NO3)2, NO and NO2
3. Cu(NO3)2 and N2O
4. Cu(NO3)2 and NO2
Which of the following statements about acids is true?
|1.||Phosphinic acid is a monoprotic acid while phosphonic acid is a diprotic acid|
|2.||Phosphinic acid is a diprotic acid while phosphonic acid is a monoprotic acid|
|3.||Both are triprotic acids|
|4.||Both are diprotic acids|
The product obtained as a result of a reaction of nitrogen with CaC2 is:
AlF3 is soluble in HF only in presence of KF. It is due to the formation of
In which pair of ions both the species contain S-S bond?
Match the interhalogen compounds of Column I with the geometry in Column II and assign the correct code.
Column I Column II
A. XX' (i) T-shape
B. XX'3 (ii) Pentagonal bipyramidal
C. XX'5 (iii) Linear
D. XX'7 (iv) Square-pyramidal
The correct match among the following is -
A B C D
1. (iii) (iv) (i) (ii)
2. (iii) (i) (iv) (ii)
3. (v) (iv) (iii) (ii)
4. (iv) (iii) (ii) (i)
|(A) XX’||(i) T-shape|
|(B) XX’3||(ii) Pentagonal bipyramidal|
|(C) XX’5||(iii) Linear|
|(D) XX’7||(iv) Square Pyramidal|
Which of the following pairs of the compound is isostructural?
1. TeF2, XeF2
2. IBr2-, XeF2
3. IF3, XeF2
4. BeCl2, XeF2