Options:
- A. polydentate ligand
- B. chelate
- C. monodentate ligand
- D. hydrate
View Answer
B. chelate
Chemistry
In the production of wrought iron Mg Si and P are removed in the form of___________________?
Options:
- A. oxides
- B. silicates
- C. slag
- D. carbonates
View Answer
C. slag
The mechanism by which the genetic information can be duplicated is called_________________?
Options:
- A. Duplication
- B. Transcription
- C. Replication
- D. Mutation
View Answer
C. Replication
The fertility of the soil is improved by________________?
Options:
- A. Rotation of the crops
- B. Adding lime to the acid salts
- C. Adding manure and growing legumes
- D. All
View Answer
D. All
Which of the following is macronutrient ?
Options:
- A. Cu
- B. Cl
- C. H
- D. Zn
View Answer
C. H
Unit of rate of reaction is_________________?
Options:
- A. Moles dm-3 sec-1
- B. Moles dm-3
- C. Moles sec-1
- D. Mol-1 dm3 sec-1
View Answer
A. Moles dm-3 sec-1
On increasing the temperature the rate of reaction increases mainly because_________________?
Options:
- A. The activation energy of the reaction increases
- B. Concentration of the reacting molecules increases
- C. Collision frequency increases
- D. None of these
View Answer
C. Collision frequency increases
Which of the p-block elements are not representative elements ?
Options:
- A. Alkali metals (I-A)
- B. Group-14 elements (IV-A)
- C. Group-18 elements (VIII-A)
- D. Halogens (VII-A)
View Answer
C. Group-18 elements (VIII-A)
In Galvanic cell electrons flow from anode to cathode through__________________?
Options:
- A. external electric circuit
- B. salt bridge
- C. movement of ions
- D. all of the above
View Answer
A. external electric circuit
Stronger the oxidizing agent greater is the________________?
Options:
- A. Oxidation potential
- B. Reduction potential
- C. Redox potential
- D. emf of cell
View Answer
B. Reduction potential