Methanol is prepared from carbon monoxide and hydrogen. The catalyst used for this reaction is
- Cr203 + ZnO
- ZnO + Cu0
- ZnO + Co02
- ZnO + Ag20
Why do transition elements form alloys so easily
- Atomic size
- Hard elements
- Very light
- Orbital configuration
For every reaction occurring in human body there is at least one type of
- Vitamin
- Enzyme
- Protein
- Amino acid
The solubility of KCIO3 Is decreased by adding
- Not effected
- KCI
- H20
- KClO3
At room temperature. Glycerin bolls at 290 C. What is the boiling point of glycerin under vacuum distillation at 50 torr
- 210 C
- 310 C
- 300 C
- 320 C
Which of the following acids has the smallest dissociation constant
- FCH2CH2COOH
- CH3CHFCOOH
- BrCH2CH2COOH
- CH3CHBrCOOH
Which functional group is characteristic of ester
- R-CO-OR
- R-CO-OH
- R-CO-R
- R-O-R
The hydrocarbon which has isolated ring and is aromatic
- Triphenylmethane
- Phenanthrene
- Diphenyl ether
- Anthracene
Coulomb’s law is only true for point charges whose sizes are
- Large
- Very small
- Very large
- Medium
The polar part of the soap and detergents dissolve in meet molecules due to:
- Dipole – dipole forces
- Dipole – induced dipole forces
- London Dispersion forces
- Hydrogen bonding
