Question

Which of the following statements is completely correct? a. NH3 is a weak base, and H2CO3 is a strong acid. b. H2CO3 is a strong acid, and NaOH is a strong base. c. NH3 is a weak base, and HCl is a strong acid. d. H2CO3 is a weak acid, and NaOH is a weak base. e. NH3 is a strong base, and HCl is a weak acid.

Answer 1

Answer:

C) NH3 is a weak base (alkali), and HCl is a strong acid.

Explanation:

Remember that bases and acids are determined by the Ph of a the substances, NH3 has a Ph of 11 making it a weak base, strong bases have 12 or more, remember that neutral Ph is around 7, and HCl has a ph of 3.01 making it a strong acid, it has so the correct statement would be C) NH3 is a weak base (alkali), and HCl is a strong acid.

Remember that weak acids gor from 5 to 7 and weak bases go from 8-11

Answer 2

Answer: The correct answer is Option c.

Explanation:

Weak acid is defined as the acid which does not get completely dissociated into its ions when dissolved in water. For Example: $CH_3COOH,H_2CO_3$ etc..

Strong acid is defined as the acid which gets completely dissociated into its ions when dissolved in water. For Example: $HCl,HNO_3$ etc..

Weak base is defined as the base which does not get completely dissociated into its ions when dissolved in water. For Example: $NH_3,NH_4OH$ etc..

Strong base is defined as the base which gets completely dissociated into its ions when dissolved in water. For Example: $NaOH,KOH$ etc..

From the above information, it is clearly visible that the correct answer is Option c.