alleryઓરડાના તાપમાને, પ્રવાહી અવસ્થામાં અસ્તિત્વ ધરાવતી એકમાત્ર ધાતુ કઈ છે:
Aસોડિયમ (Na)
Bએલ્યુમિનિયમ (Al)
Cપારો (Hg)
Dલોખંડ (Fe)
Answer & Solution
Correct answer: C. પારો (Hg)
પારો (Hg) ઓરડાના તાપમાને પ્રવાહી હોય તેવી એકમાત્ર ધાતુ છે (ગલનબિંદુ -39°C).
અન્ય તમામ સામાન્ય ધાતુઓ ઘન હોય છે
બ્રોમિન એકમાત્ર પ્રવાહી અધાતુ છે.
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