Options:
- A. carboxylic acids
- B. ketones
- C. aldehydes
- D. polymers
View Answer
D. polymers
Chemistry
Which of the following can be used as anti-knocking agent ?
Options:
- A. PbCl2
- B. (C2H5)4 Pb
- C. (C2H5)2 Pb
- D. all of the above
View Answer
B. (C2H5)4 Pb
Rate of reactions of most organic compounds are____________________?
Options:
- A. very slow
- B. very fast
- C. slow
- D. no regular character present
View Answer
C. slow
For which system does the equilibrium constant Kc has unit of (concentration)-1__________________?
Options:
- A. N2+3H2 2NH3
- B. H2+I2 2HI
- C. 2NO2 N2H4
- D. PCI5 PCI3+CI2
View Answer
C. 2NO2 N2H4
The common name of propane -1 3-dioic acid is____________________?
Options:
- A. Oxalic acid
- B. Succinic acid
- C. Malonic acid
- D. Fumaric acid
View Answer
C. Malonic acid
18g glucose is dissolved in 90g water the relative lowering in vapour pressure is equal to ___________________?
Options:
- A. 8
- B. 5.1
- C. 6
- D. one/fifty one
View Answer
D. one/fifty one
Industrial materials thermal power stations are coated with__________________?
Options:
- A. Polyester resins
- B. Epoxy paints
- C. polyamide resins
- D. Polyvinyl chloride
View Answer
B. Epoxy paints
Stronger is the oxidizing agent greater is the___________________?
Options:
- A. Oxidation potential
- B. Redox potential
- C. e.m.f of cell
- D. standard reduction potential
View Answer
D. standard reduction potential
Main source of organic compounds is__________________?
Options:
- A. Animal
- B. Fossil
- C. Coal
- D. Plants
View Answer
A. Animal
Which is true about Zn-Cu galvanic cell ?
Options:
- A. Reduction occurs at anode
- B. K+ ion transfer from salt bridge to left beaker of ZnSO4
- C. Oxidation occurs at cathode
- D. Anode is negatively charged
View Answer
D. Anode is negatively charged