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Q.

Which of the following statements are false.

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a

Ca(OH)2 is called slaked lime

b

Mg2+ and Ca2+ ions are responsible for the transmission of electrical impulses along the nerve fibre

c

Ca2+ ion is present in chlorophyll pigment

d

The enamel on teeth is a double salt of Mg

answer is C, D.

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Mg2+ ion is present in chlorophyll pigment. The enamel on teeth is a double salt of calcium

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