Examveda

Why do alkali metals impart colour to the flame?

A. They are electropositive elements

B. They have low ionisation energies

C. They belong to IA group

D. They form ionic compounds

Answer: Option B


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Related Questions on Metal and Its Compounds

Stainless steel does not rust because

A. chromium and nickel combine with iron

B. chromium forms an oxide layer and protects iron from rusting

C. nickel present in it, does not rust

D. iron forms a hard chemical compound with chromium present in it