S_1 : Metals comprises less than 78% of all known elements and appear on the left side of the periodic table. S_2

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Q 2712023839.     S_1 : Metals comprises less than 78% of all known elements and appear on the left side of the periodic table.
S_2 : Silicon, germanium, arsenic, antimony, selenium and tellurium all are semi-metals.
S_3 : The following order represents the correct increasing order of metallic character; P < Si < Be < Mg < Na
S_4 : Solubility of the carbonates of alkali metals increases with increasing atomic number.
A

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B

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C

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D

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