Chemistry
Grade-9
Easy
Question
What is the flame color of calcium?
- Yellow-green
- Blue
- Red-orange
- Brick-red
Hint:
Brick red color.
The correct answer is: Brick-red
- A flame test is an analytical procedure used in chemistry to detect the presence of certain elements, primarily metal ions, based on each element's characteristic emission spectrum.
- Alkali metals and alkaline earth metals show color in flame test.
- Calcium show brick red color in flame test.
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What are compounds of Strontium used for?
- Radioactive energy sources
- Industrial bases
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As we move down the group in alkaline earth metal, what happens to the ability to form peroxides?
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Which group of metals are more reactive?
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What is calcium hydroxide used for?
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What is the flame color of sodium?

- Blue
- Orange
- Yellow
- Red
What is the flame color of sodium?

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What type of reaction occurs when an alkali metal combines with water?
- Decomposition
- Exothermic
- Endothermic
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What type of reaction occurs when an alkali metal combines with water?
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Alkali metals react with water to form:
- Hydrogen and metal hydroxide
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Alkali metals react with water to form:
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Among the following, the element possessing a low melting point is:
- Metals
- Non-metals
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Among the following, the element possessing a low melting point is:
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Which elements are found on the right side of the periodic table?
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Which elements are found on the right side of the periodic table?
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The element given below is dull and brittle. It is:

- Metal
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