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ৰাসায়ন বিজ্ঞান (Chemistry) MCQ

206. SO₂ আৰু NO₂ য়ে বৰষুণত সৃষ্টি কৰা এছিদবােৰ হ’ল

A. HNO₂ আৰু H₂SO₄

B. HNO₃ আৰু H₂SO₄

C. HNO₃ আৰু H₂S₂O₇

D. HNO₂ আৰু H₂S

Answer :B

Solution :

207. তলৰ কোনটো মিথেন গেছৰ উৎস?

A. দ'-পিতনি

B. পেট্রল-ডিজেল

C. ৰাসায়নিক সাৰ

D. উৰাজাহাজ

Answer :A

Solution :

208. তলৰ কোনটো এটা প্রাথমিক বায়ু প্ৰদূষক?

A. H₂SO₄

B. HNO₃

C. NO₂

D. PAN

Answer :C

Solution :

209. তলৰ কোনটো এটা গৌণ (Secondary) বায়ু প্ৰদূষক

A. CFC

B. PAN

C. O₃

D. SO₂

Answer :B

Solution :

210. তলৰ কোনটো বায়ু প্ৰদূষক নহয় ?

A. Hg & NO₂

B. CO & CH₄

C. SO₂ & NO₂

D. CFC & PAN

Answer :A

Solution :

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