[ORGANIC CHEMISTRY] Introduction

c. CO₂ and CO₃²⁻ are under organic chemistry.

CO₂ and CO₃²⁻ are INORGANIC compounds even though its C containing.

True except:

a. Organic chemistry is the study of compounds most containing carbon.

b. Not all carbon containing compounds are organic.

c. CO₂ and CO₃²⁻ are under organic chemistry.

d. Family and class or organic compounds ha similar structure and reactivity.

e. None

a. 1s2 2s2 2p2

Atomic number of C is 6.

Electron configuration of C.

a. 1s2 2s2 2p2

b. 1s2 2s2 2p3

c. 1s2 2s2 2p4

d. 1s2 2s2 2p5

b. 1s2 2s2 2p3

Atomic number of N is 7.

Electron configuration of N.

a. 1s2 2s2 2p2

b. 1s2 2s2 2p3

c. 1s2 2s2 2p4

d. 1s2 2s2 2p5

c. 1s2 2s2 2p4

Atomic number of O is 8.

Electron configuration of O.

a. 1s2 2s2 2p2

b. 1s2 2s2 2p3

c. 1s2 2s2 2p4

d. 1s2 2s2 2p5

d. 1s2 2s2 2p5

Atomic number of F is 9.

Electron configuration of F.

a. 1s2 2s2 2p2

b. 1s2 2s2 2p3

c. 1s2 2s2 2p4

d. 1s2 2s2 2p5

b. 4

Valence electrons of C.

a. 1

b. 4

c. 5

d. 6

e. 7

c. 5

Valence electrons of N.

a. 1

b. 4

c. 5

d. 6

e. 7

d. 6

Valence electrons of O.

a. 1

b. 4

c. 5

d. 6

e. 7

e. 7

Valence electrons of halogens.

a. 1

b. 4

c. 5

d. 6

e. 7

a. 1

Valence electrons of H.

a. 1

b. 4

c. 5

d. 6

e. 7

d. 4 - tetravalent

4 more electrons to satisfy the Octet rule which requires 8 electrons to be stable.

Number of electrons or bonds needed by C.

a. 1

b. 2

c. 3

d. 4

c. 3 - trivalent

3 more electrons to satisfy the Octet rule which requires 8 electrons to be stable. (8 - valence electrons)

Number of electrons or bonds needed by N.

a. 1

b. 2

c. 3

d. 4

b. 2 - divalent

2 more electrons to satisfy the Octet rule which requires 8 electrons to be stable. (8 - valence electrons)

Number of electrons or bonds needed by O.

a. 1

b. 2

c. 3

d. 4

a. 1 - monovalent

1 more electrons to satisfy the Octet rule which requires 8 electrons to be stable. (8 - valence electrons)

Number of electrons or bonds needed by halogens.

a. 1

b. 2

c. 3

d. 4

a. 1

Although (8 - valence electrons of H) will be 7, H only have 1 electron or bond needed. It is excused from the Octet rule since 1st energy level only need 2 electrons.

Number of electrons or bonds needed by H.

a. 1

b. 2

c. 3

d. 4

a. 0

Number of lone pairs of H in stable compound.

a. 0

b. 2

c. 3

d. 4

e. 6

f. 1

a. 0

Valence electrons of carbon is 4.

Carbon needs 4 electrons for bonding.

There will be no remaining valence electrons thus 0 lone pair.

Number of lone pairs of C in stable compound.

a. 0

b. 2

c. 3

d. 4

e. 6

f. 1

f. 1

Valence electrons of nitrogen is 5.

Nitrogen needs 3 electrons for bonding.

The other 2 valence electrons will be 1 lone pair.

Number of lone pairs of N in stable compound.

a. 0

b. 2

c. 3

d. 4

e. 6

f. 1

b. 2

Valence electrons of oxygen is 6.

Oxygen needs 2 electrons for bonding.

The other 4 valence electrons will be 2 lone pairs.

Number of lone pairs of O in stable compound.

a. 0

b. 2

c. 3

d. 4

e. 6

f. 1

c. 3

Valence electrons of halogens is 7.

Halogens need 1 electron for bonding.

The other 6 valence electrons will be 3 lone pairs.

Number of lone pairs of halogens in stable compound.

a. 0

b. 2

c. 3

d. 4

e. 6

f. 1

a. H

Which of the following only requires 1 bond to be stable?

a. H

b. F

c. O

d. N

e. None

• Catenation is the ability to form chain.

• Isomers are compounds with same molecular formula but different structure.

Property of carbon compounds except:

a. Catenation

b. Stability is based on octet rule

c. Can exists as compounds with same molecular formula but different structure

d. Hybridization

e. None