Question

Unit for electro-chemical equivalent is
Options:

A) g/coulomb

B) g/ampere

C) g/sec

D) g/faraday


Q: An example of plasticizers used in paints is .......
Options:

A) methylated spirit

B) asbestos

C) naphthenates

D) triphenyl phosphate

Q: Select the correct statement from the following.
Options:

A) plastics obtained by addition polymerization reaction are joined by strong

covalent bond

B) plastics obtained by addition polymerization reaction are insoluble in organic

solvents

C) plastics obtained by addition polymerization are joined by weak covalent bond

D) plastics obtained by condensation polymerization are soluble in organic

solvents

Q: The weakest bond among the following is
Options

A) Ionic Bond

B) Metallic Bond

C) Covalent bond

D) Hydrogen bond

Answer 1

1. The S.I. Unit of Z is kg/coulomb (kg C-1). option no.A. 2.option d. 3.option b. 4.option d.

Answer 2

A), D), B), D)

Explanation:

1) The SI unit of electrochemical is kg/Coulomb as the mass liberated in electrolysis by 1 coulomb is that the electrochemical like material.

2) Triphenyl phosphate(TPP) is white, odorless crystalline powder. It's is flame retardant plasticizer used in paints.

3) In addition polymerization, monomers react to create a polymer without the formation of by-product joined by weak covalent bonds.

4) H-bond is slightly positive, attracted towards neighboring charge. A weak force occurs between the δ+ of hydrogen from one molecule and also the δ– charge on the more electronegative atoms of another molecule.