classify the following substances as one/two/three acidic/acidic HCl
Answers
(i) HCl(aq) - Acid (Arrhenius concept and Bronsted-Lowry concept)
(ii) NH 3 (g) - Base (Bronsted concept and Lewis concept).
(iii) Na 2 CO 3 (aq) - Base (Bronsted concept)
(iv) CH3 COOH(aq) - Acid (Arrhenius concept and Bronsted concept)
(v) CO 2 (g) - Acid (Bronsted concept and Lewis concept)
(vi) BF 3 - Acid (Lewis concept)
(vii) Ag + - Acid (Lewis concept)
(viii) CN - Base (Lewis concept)
(ix) H 2 O - Both acid and base i.e., amphoteric (Bronsted concept)
(x) H
2
SO
4
- Both acid and base i.e., amphoteric (Bronsted concept)
(xi) HCO
3
−
-Both acid and base i.e., amphoteric (Bronsted concept)
(xii) SiF
4
- Acid (Lewis concept)
Answer:
(i) HCl(aq) - Acid (Arrhenius concept and Bronsted-Lowry concept)
(ii) NH
3
(g) - Base (Bronsted concept and Lewis concept).
(iii) Na
2
CO
3
(aq) - Base (Bronsted concept)
(iv) CH
3
COOH(aq) - Acid (Arrhenius concept and Bronsted concept)
(v) CO
2
(g) - Acid (Bronsted concept and Lewis concept)
(vi) BF
3
- Acid (Lewis concept)
(vii) Ag
+
- Acid (Lewis concept)
(viii) CN
−
- Base (Lewis concept)
(ix) H
2
O - Both acid and base i.e., amphoteric (Bronsted concept)
(x) H
2
SO
4
- Both acid and base i.e., amphoteric (Bronsted concept)
(xi) HCO
3
−
-Both acid and base i.e., amphoteric (Bronsted concept)
(xii) SiF
4
- Acid (Lewis concept)