Chemical Reactivity – Chemistry 9th – Level 5

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Chemical Reactivity - Level 5

Chapter 8 - Chemistry Class 9th - Test Preparation MCQs

Read the following ten questions of Chemical Reactivity (level 5) before you start the test.

  1. Chemical formula of baking soda is:
  2. It is 8th most abundant element found in earth's crust.
  3. Magnesium belongs to:
  4. It is used in flares and photographic flashbulbs.
  5. It is 5th abundant metal in earth's crust. it belongs to II A group and 4th period.
  6. It is essential for healthy teeth and bones.
  7. Chemical formula of gypsum is:
  8. CaCO3 is the chemical formula of:
  9. Noble metals are difficult to oxidize because they are:
  10. It is the only metal found in a liquid state.

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1. CaCO3 is the chemical formula of:

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2. It is the only metal found in a liquid state.

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3. Chemical formula of baking soda is:

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4. It is 8th most abundant element found in earth's crust.

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5. It is used in flares and photographic flashbulbs.

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6. It is 5th abundant metal in earth's crust. it belongs to II A group and 4th period.

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7. Magnesium belongs to:

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8. Chemical formula of gypsum is:

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9. It is essential for healthy teeth and bones.

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10. Noble metals are difficult to oxidize because they are:

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