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प्रश्न
Complete the statement with the correct words.
_______ are chemicals which are hydroxide (or oxides) of ______ eg. sodium hydroxide.
उत्तर
Bases – are chemicals which are hydroxide (or oxides) of metals eg. sodium hydroxide.
संबंधित प्रश्न
Give one example for the following type of mixtures
solid-solid homogenous mixture.
Write the Chemical Name of the Following and Also Give Their Molecular Formulae:
Vinegar
How is sodium chloride different from its constituent elements, sodium and chlorine in its properties? Justify.
Give two examples of the following.
Metals which are soft
Indicate whether the following statement is true or false:
Ozone is a triatomic molecule
The important physical properties of substances are colour, odour, nature, density & solubility in water.
Name – two coloured gases (with their colours)
Elements are broadly classified into metals and non-metals. State six general differences in the physical properties of metals and non-metals. State two metals and two non-metals which contradict with the general physical properties – giving reasons. State one difference in property between metalloids and noble gases.
Differentiate between homogenous & heterogeneous mixtures.
Why are utensils made up of aluminium and brass?
Give an account of elements known to us.
