Set 2 - ec
11. which planet has the least elliptical orbit?
(1) jupiter
(2) mars
(3) venus
(4) saturn
11

11. Which planet has the least elliptical orbit?

(1) Jupiter

(2) Mars

(3) Venus

(4) Saturn

Venus the least elliptical orbit (the most circular one).

oxygen, selenium, tellurium, and polonium.

they're all from the same group as sulfur (group 16).

substituting a hydrogen atom with a halogen in a hydrocarbon:

- the single bond remains single. a is wrong.

- the bond with hydrogen is as strong as with a halogen. c is wrong

- a hydrocarbon is saturated if there is no double bond. we do not know that so d is wrong.

- carbon will always have four valence electrons. e is wrong.

by elimination, the correct answer is b. the boiling point of the new compound increases.