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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
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
Define: Elements-
On what principle are the following methods of separation based? Give one example of a mixture for each of the methods mentioned in which they are used
Magnetic separation
The symbols of the elements cobalt, aluminium, helium and sodium respectively written by a student are as
follows. Which symbol is the correct one ?
The formula of the sulphate of an element X is X2(SO4)3. The formula of nitride of element X will be :
The formula of the sulphate of an element M is M2(SO4)3
Write the formula of it
Chloride
Give the symbol of the following element:
Sulphur [sulphide]
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
What does the symbol '⇌' present in a chemical equation, mean?
Which of the following symbols of elements are incorrect? Give their correct symbols
- Cobalt CO
- Carbon c
- Aluminium AL
- Helium He
- Sodium So
Which letter is never used in any element symbol?
