What is meant by strong bases and weak bases ? Classify the following into strong bases and weak bases :

(iii) Thymine

(i) Hydrochloric acid(HCl),nitric acid(HNO3)  (ii) Carbonic acid (H2CO3),oxalic acid(C2H2O4)

Conjugate acids of given bases are H2O, ROH, CH3 COOH, HCl. Their acidic strength is in the order HCl > CH3 COOH > H2O >ROH Hence, basic strength is in the order...

(a) Citric acid – Lemon. (b) Oxalic acid – Tomatoes. (c) Lactic acid – Sour milk or curd. (d) Tartaric acid – Tamarind.

A strong acid is one that completely ionises in water to form a large amount of hydrogen ions whereas a weak acid only partially ionises in water and thus produces...

An alkali is a basic hydroxide which when dissolved in water produces hydroxyl ions (OH-) as the only negatively charged ions. (a) Strong alkalis: Sodium hydroxide , Potassium hydroxide (b) Weak alkalis:...

Acids: H2SO4 and HNO3 Bases: Ammonium hydroxide and sodium hydroxide. Salts: Barium chloride and sodium chloride.

(a) Sodium carbonate (b) NH4OH (c) An inert electrode: graphite and Active electrode: silver (d) H+ (e) Electrode is cathode (f) Graphite

(a) Strong electrolyte: Dilute hydrochloric acid, dilute sulphuric acid, ammonium chloride, sodium acetate (b) Weak electrolyte: Acetic acid, ammonium hydroxide (c) Non-electrolyte: Carbon tetrachloride

Names Bases (1) Potassium hydroxide (b) KOH (2) Zinc hydroxide (d) Zn(OH)2  (4) Calcium hydroxide (c) Ca(OH)2 (5) Sodium hydroxide (a) NaOH