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प्रश्न
Classify the substances given in Fig. 2.2 into elements and compounds
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उत्तर
Elements – Cu, Zn, F2, O2, diamond (C), Hg
Compounds – CaCO3, H2O,
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संबंधित प्रश्न
Differentiate between:
Homogenous and heterogenous substances
Write the Chemical Name of the Following and Also Give Their Molecular Formulae:
Vinegar
Name: a Metal Which is brittle
Give two examples of the following.
Non-metals which are lustrous
What is meant by 2H and H2
Tick (√) the correct alternative from the choice given for the following statement
The most ductile metal.
Give the name of the radical - CO3
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.
Give an example of two liquids that form heterogeneous mixtures.
Elements are made up of______ kinds of atoms.
