Class 9 Chemistry MCQs - Chapter 1
Chemical Reactivity Multiple Choice Questions (MCQs) PDF Download - 1
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Chemical Reactivity MCQs with Answers PDF Download: Quiz 1
Metal that difficult to oxidize are called
- weak metals
- strong metals
- noble metals
- ionic metals
On contact with oxygen, Rubidium forms
- normal oxide
- per oxide
- super oxide
- trioxide
The most metallic among the following is
- Na
- K
- Al
- B
As we move across the period the electronegativity
- decreases
- increases
- remains same
- becomes zero
As we move across the period from left to right, the reactivity of metals with oxygen
- decreases
- increases
- remains same
- zero
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