alleryকোঠাৰ উষ্ণতাত, তৰল (LIQUID) অৱস্থাত থকা একমাত্ৰ ধাতুবিধ হৈছে:
Aছডিয়াম (Na)
Bএলুমিনিয়াম (Al)
Cপাৰা (Hg)
Dলো (Fe)
Answer & Solution
Correct answer: C. পাৰা (Hg)
পাৰা (Hg) হৈছে কোঠাৰ উষ্ণতাত একমাত্ৰ তৰল ধাতু (গলনাংক -৩৯°C)।
আন সকলো সাধাৰণ ধাতু কঠিন
ব্ৰ'মিন হৈছে একমাত্ৰ তৰল অধাতু।
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