Potassium Citrate এর কাজ, ব্যবহারের নিয়ম

KCl (aq) + AgNO3 (aq) → AgCl (s) + KNO3 (aq) It is a double displacement and precipitation reaction.

(a) Platinum, gold, and silver are used to make jewellery because they are very lustrous. Also, they are very less reactive and do not corrode easily. (b) Sodium, potassium, and lithium...

(i) Iron react with steam to form the metal oxide and hydrogen.  3Fe(s) + 4H2O(g) → Fe3O4(s) + 4H2(g)  (ii) The reaction of calcium with water is exothermic but the heat evolved...

(a) Yes. The atoms of all the three elements lithium, sodium, and potassium have one electron in their outermost shells. (b) Both helium (He) and neon (Ne) have filled outermost shells....

Correct answer is (c) Iron 

Due to less metallic character of sodium

Due to lesser ionisation enthalphy.

Thus, in potassium, the outermost electron is better shielded from the attractive force of the nucleus. It follows, therefore, that this outermost electron is more easily lost than it is in sodium, so potassium can be...

(b) calcium and phosphorus