Advertisements
Advertisements
प्रश्न
Match the formulas of the following of bases with their correct names.
Bases – (a) NaOH (b) KOH (c) Ca(OH)2 (d) Zn(OH)2
Names – (1) Potassium hydroxide (2) Zinc hydroxide (3) Aluminium hydroxide (4) Calcium hydroxide (5) Sodium hydroxide
उत्तर
| Names | Bases | ||
| (1) | Potassium hydroxide | (b) | KOH |
| (2) | Zinc hydroxide | (d) | Zn(OH)2 |
| (3) | Calcium hydroxide | (c) | Ca(OH)2 |
|
(4) |
Sodium hydroxide | (a) | NaOH |
संबंधित प्रश्न
State whether the following statement is true or false:
The symbol of element cobalt is CO.
Match the symbols of non-metallic elements with their correct combining power or capacity.
(a) O
(b) S
(c) Cl
Combining power or capacity A : 3; B : 2; C : 1. (negative valencies)
Match the formulas of the following of acids with their correct names:
Acids – (a) HCI (b) HNO3 (c) H2SO4 (d) H2CO3
Names – (1) Carbonic acid (2) Sulphuric acid (3) Hydrochloric acid (4) Nitric acid
State which element exists in the highest percentage in atmosphere.
State the type of element for the following:
Oxygen
State the type of element for the following:
Fluorine
Select the correct answer from the choice in the bracket.
The formula of caustic soda.
State the valency of the following metallic element and write symbol with the valency
Potassium
State the valency of the following metallic element and write symbol with the valency
Aluminium
State whether the following ion or radical given below of a non-metallic element exhibits valency: 1–, 2– or 3–. (write the ion or radical with the correct valency).
Plumbite
