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বাংলা
Which of the following is false?
নিম্নলিখিত কোনটি ভুল?
Practice MCQ for SSC, UPSC, RRB Exams
A. Mica is usually found in metamorphic and igneous rocks
A. মাইকা সাধারণত রূপান্তরিত ও আগ্নেয় শিলায় পাওয়া যায়
B. Aluminium has the advantage over iron as it is resistant to corrosion
B. অ্যালুমিনিয়াম লোহার তুলনায় বেশি সুবিধাজনক, কারণ এটি ক্ষয় প্রতিরোধী
C. line is mostly used in galvanising iron and steel goods
C. জিঙ্ক মূলত লোহা ও ইস্পাতকে গ্যালভানাইজ করতে ব্যবহৃত হয়
D. Manganese is largely used in making fertilizers
D. ম্যাঙ্গানিজ প্রধানত সার তৈরিতে ব্যবহৃত হয়
Correct Answer: D
সঠিক উত্তর: D
Explanation
ব্যাখ্যা
Option A:
Mica
is commonly found in
metamorphic and igneous rocks
— this statement is
correct
.
Option B:
Aluminium
is
resistant to corrosion
due to the formation of a protective oxide layer — this is
correct
.
Option C:
(Likely refers to
Zinc
) which is used in
galvanising iron and steel
to prevent rusting — this is
correct
.
Option D:
Manganese
is mainly used in
steel making
and
alloy production
, not largely in fertilizers — this statement is
false
.
Option A:
মাইকা
সাধারণত
রূপান্তরিত ও আগ্নেয় শিলায় পাওয়া যায়
— এটি
সঠিক
।
Option B:
অ্যালুমিনিয়াম
একটি
অক্সাইড স্তর তৈরি করে
, যা তাকে
ক্ষয় থেকে রক্ষা করে
— এটি
সঠিক
।
Option C:
(এখানে
জিঙ্ক
বোঝানো হয়েছে) যা
লোহা ও ইস্পাতকে গ্যালভানাইজ করতে ব্যবহৃত হয়
— এটি
সঠিক
।
Option D:
ম্যাঙ্গানিজ
প্রধানত
ইস্পাত উৎপাদন ও মিশ্র ধাতু তৈরিতে ব্যবহৃত হয়
, সার তৈরিতে নয় — এটি
ভুল
।
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