PAST BOARDS 2014 Flashcards

1
Q

Formula of Red Lead

A

Pb3O4

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Can oxygen be synthesized from nitrogen?

A

Impossible unless i.exposed in a very hot temp. like stars and sun

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Author of Octet Rule

A

Gilbert Lewis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

How does alpha, beta, and gamma particle affect the mass number of an atom?

A

4,0,0

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Iodine vapor forms iodine crystals when it touches a cold surface. What is the reverse of the process being describe?

A

Sublimation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Given Dodecane
I. Is it soluble in water?
II. Is it soluble in hexane?
III. Is it combustible?
IV. Is it solid, liquid or gas at room temp. and atmospheric conditions?
V. Is it denser than water?

A

I. No
II. Yes
III. Yes
IV. Liquid
V. Less Dense

How well did you know this?
1
Not at all
2
3
4
5
Perfectly