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प्रश्न
Select the correct answer from the choice in the bracket.
The formula of caustic soda.
विकल्प
KOH
Ca(OH)
NaOH
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उत्तर
NaOH
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संबंधित प्रश्न
What is the significance of the symbol of an element ? Explain with the help of an example.
The formula of the sulphate of an element M is M2(SO4)3
Write the formula of its
Acetate
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
Give the symbol of the following element:
Boron
Give the symbol of the following element:
Xenon
Give the symbol of the following element:
Bromine [bromide]
Give the symbol of the following element:
Hydroxide
State the valency of the following metallic element and write symbol with the valency
Calcium
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).
Nitrate
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).
Sulphate
