Chemistry Class 9 Unit 4

According to $Octet\ Rule$ , atoms bond to acquire _______  electron configuration.

• 4

• 6

• 8

• 3

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

The bonding between $cation$ and  $anion$  is called ______________ bond.

• covalent

• ionic

• hydrogen

• metallic

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-3

The _______________ bond is formed by the $mutual\ sharing$ of electrons between two atoms.

• Ionic

• Covalent

• metallic

• hydrogen

Which of the following elements follows the $duplet\ rule$  ?

• Hydrogen

• Chlorine

• Nitrogen

• Oxygen

Tags

NGSS.HS-PS1-1

 $ns^2np^6$  is the electronic configuration of _______________.

• Halogens

• Alkali Metals

• Alkaline Earth Metals

• Noble Gases

Tags

NGSS.HS-PS1-1

Which of the following do not participate in chemical reactions?

• Alkali Metals

• Halogens

• Noble gases

• Alkaline Earth Metals

Tags

NGSS.HS-PS1-2

 $Ionic\ Compounnds$  as a whole has _____________ charge.

• Positve

• Negative

• No charge

Tags

NGSS.HS-PS1-3

Which of the following equation represents the above process?

• $Na+e^-\ \longrightarrow\ Na^{-1}$

• $Na\ \rightarrow\ Na^{+1}\ +e^-$

Tags

NGSS.HS-PS1-2

This process shows _________ formation.

• Anion

• Cation

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

The bond formed between $Na$  and  $F$  is __________.

• Ionic Bond

• Covalent Bond

• Hydrogen Bond

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2