arrhenius, bronsted lowry and lewis concept

The conjugate base of

 $H_2PO_4^-$  is

•  $H_3PO_4$  

•  $H_2PO_4^-$  

•  $HPO_4^{-2}$  

•  $PO_4^{-3}$  

The strongest bronsted acid in the following anion is

• $CN^-$

• $Cl^-$

• $I^-$

• $Br^-$

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which is/are wrong statements?

• Arrhenius acids are also Bronsted acids but all Arrhenius bases are not Bronsted bases.

• All lewis bases are Bronsted bases.

• All Bronsted acids are Lewis acids.

• Conjugate base of a strong acid is weak.

In the acid-base relation:

 $HCl+CH_3COOH$  ⇌ $Cl^-+CH_3COOH_2^+$  ​the conjugate acid of acetic acid is:

•  $Cl^-$  

•  $HCl$  

•  $CH_3COOH_2^+$  

•  $H_3O^+$  

Which are the set of amphiprotic species?

• $H_2O,H_2PO_4^-,HPO_4^{-2}$

• $HPO_4^{-2},HCO_3^-$

• $H_2PO_2^-,H_2PO_3^-,HC_2O_4^-$

• $HPO_3^{-2},H_2O,CO_3^{-2}$

Classify this acid.

• Arrhenius Acid

• Bronsted Lowry Acid

• Lewis Acid

HCl is:

• an Arrhenius acid

• a Bronsted Lowry acid

• both an Arrhenius and Bronsted Lowry acid

• a base

In the equation below, what is the Bronsted Lowry base?

HCl + NH₃ --> Cl^- + NH₄⁺

• HCl

• NH₃

• Cl^-

• NH₄⁺

Which of the following is not a Lewis acid?

• $CO$

• $SiCl_4$

• $SO_3$

• $Zn^{+2}$

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2