Which one has one unpaired electron in the valence shell
- Fe^+3
- Zn^+2
- Ti^+3
- Cu+
Which one of the following Is covalent in nature
- Ca3N2
- Mg3N2
- Be3N2
- Ba3N2
Indicate superoxide in the following:
- Na2O2
- CaO
- BaO2
- RbO2
Element whose salts do not impart color to name test is
- Ca
- Cs
- K
- Be
Choose the element that forms normal oxides only:
- Li
- K
- Rb
- Na
The bond length between double bonded carbon atoms is
- 1.54 A°
- 1.10 A°
- 1.34 A°
- 1.82 A°
Molecule having the highest bond energy (Experimentally) is:
- HF
- HCl
- HI
- HBr
The molecular shape of a molecule with three bonded atom and one lone pair electron on the central atom will be:
- Trigonal pyramidal
- Linear
- Trigonal planar
- Tetrahedral
In redox reaction of SO2 with KMnO4 in acidic medium
- SO2 is oxidezes KMnO4
- KMnO4 is inert in acidic medium
- SO2 is reduces KMnO4
- SO2 cant undergo redox reaction
Processes involving solids and liquids having their
- ΔH= ΔE + PΔV
- ΔH= 0
- ΔH= PΔV
- ΔH= ΔE
