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ৰাসায়ন বিজ্ঞান (Chemistry) MCQ

176. CNG এটা

A. প্ৰদূষিত ইন্ধন

B. বিশুদ্ধ ইন্ধন

C. ক্ষতিকাৰক ইন্ধন

D. এটাও নহয়

Answer :B

Solution :

177. ফ্রিয়ন (freon) বােৰ হ’ল

A. বায়ু প্ৰদূষক

B. জল প্ৰদূষক

C. শব্দ প্ৰদূষক

D. সকলোেবােৰ

Answer :A

Solution :

178. CNG মানে হ’ল

A. Compressed Natural Ga

B. Compact Natural Gas

C. Condensed Natural Gas

D. Calcined Natural Gas

Answer :A

Solution :

179. জাপানৰ মিনামাটা ৰােগৰ কাৰণ হ'ল

A. বিছমাথ

B. আছে’নিক

C. এন্টিমণি

D. পেলাদিয়াম

Answer :B

Solution :

180. মাছবােৰে কোনটো ধাতু নিজৰ শৰীকত জমা কৰি ৰাখিব পাৰে?

A. Hg

B. Bi

C. Pd

D. Cl

Answer :A

Solution :

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