Science Exam oh no

What will be the result of the bonding between berilyum and fluorine

• BrF

• Br₂F

• BrF₂

• Br₂F₂

To satisfy the octet rule, how many electrons does it need to give/gain if its from Group 2

• Gain 2

• Gain 6

• Give 2

• Give 1

Ionic compounds have strong electrostatic forces between ____ and _____, resulting in them having higher melting and boiling points

• cations,anions

• cations,cations

• anions,anions

In the Ionic formula, X₃N, element X most likely belongs to what group?

• Group 1

• Group 8

• Group 5

• Group 7

Astatine atom has how many lone pair/s

• 3 lone pairs

• 2 lone pairs

• 1 lone pairs

• None

The simplest alkyne is?

• Ethyne

• Metyne

• Butyne

• Propyne

What is the maximum bonds carbon can make?

• 2

• 1

• 4

• 3

What type of Hydrocarbon is this?

• ethene

• pentane

• pentene

• propene

How many Hydrogen does hexane have

• 10

• 6

• 12

• 14

Which of the following has the highest boiling points

• pentane

• pentene

• hexyne

• hexane