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Reactivity of Elements MCQ (Multiple Choice Questions) PDF Download
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The MCQ: The density of Osmium is; "Reactivity of Elements" App Download [Free] with answers: 20.5 g/cm3, 21.5 g/cm3, 22.5 g/cm3, and 23.5 g/cm3 to learn online SAT prep courses. Practice Reactivity of Elements Quiz Questions, download Apple e-Book (Free Sample) for college entrance examination.
Reactivity of Elements Questions and Answers PDF Download
The density of Osmium is
- 20.5 g/cm3
- 21.5 g/cm3
- 22.5 g/cm3
- 23.5 g/cm3
The ability of an element to lose electrons and form positive ions is called
- Electronegative character
- Electropositive character
- Rate of reaction
- Chemical reactivity
24 carats gold is commonly named as
- Impure gold
- Low quality gold
- Pure gold
- None of above
As we move down the group, affinity of halogens for hydrogen
- Increases
- Decreases
- Remains constant
- Never change
MgCO3 . CaCO3 is the chemical formula of
- Magnisite
- Dolomite
- Calcite
- Gypsum
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