Easy Science Class 9 Level 14

What is the formula of magnesium oxide?

मैग्नीशियम ऑक्साइड का formula क्या है?

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Correct Answer

A. MgO

Explanation

Step 1: Identify the concept: this is about chemical formula and valency. Step 2: Magnesium has valency 2 and oxygen has valency 2 so the simplest formula is MgO. Step 3: When valencies are equal write the formula in simple ratio.

Step 1: concept पहचानें: यह chemical formula और valency से जुड़ा है। Step 2: Magnesium की valency 2 और oxygen की valency 2 होती है इसलिए simplest formula MgO बनता है। Step 3: Equal valency होने पर formula simple ratio में लिखें।

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