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प्रश्न
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
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उत्तर
| Names | Acids | ||
| (1) | Carbonic acid | (d) | H2CO3 |
| (2) | Sulphuric acid | (c) | H2SO4 |
| (3) | Hydrochloric acid | (a) | HCI |
| (4) | Nitric acid | (b) | HNO3 |
संबंधित प्रश्न
Give the symbols and valencies of following radicals:
(a) Hydroxide (b) Chloride
(c) Carbonate (d) ammonium
(e) Nitrate
Name the element used as a standard for atomic mass scale.
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
Elements are mainly classified into metals and non-metals. State six properties of metals which differ from non-metals.
Give the symbol of the following element:
Carbon
State the type of element for the following:
Calcium
State the type of element for the following:
Chlorine
State the type of element for the following:
Sodium
Write the radical of the following valency:
Phosphate
Certain metal exhibit variable valencies which include valencies: 1+, 2+, 3+, and 4+.
State the variable valency of the following metal.
Iron
write symbol with the variable valency
