Chemistry
Grade-9
Easy
Question
What colour does Ba's flame typically have?
- Apple Green
- White
- Azure
- Bright orange
Hint:
Apple green
The correct answer is: Apple Green
- In the flame Ba imparts apple green color.
- Na gives bright yellow in the flame.
- Sr gives fireworks red in flame.
- Ca gives brick red color in flame.
Related Questions to study
Chemistry
Which Group 1 elements exhibit a lilac flame colour?
- Li
- Na
- K
- Rb
Which Group 1 elements exhibit a lilac flame colour?
ChemistryGrade-9
- Li
- Na
- K
- Rb
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What is the symbol for magnesium ?
- Mg
- Mn
- Md
- Fe
What is the symbol for magnesium ?
ChemistryGrade-9
- Mg
- Mn
- Md
- Fe
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Ca is the symbol for:
- Carbon
- Chlorine
- Calcium
- Cesium
Ca is the symbol for:
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- Carbon
- Chlorine
- Calcium
- Cesium
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Be is the symbol for:
- Bromine
- Beryllium
- Boron
- Berkelium
Be is the symbol for:
ChemistryGrade-9
- Bromine
- Beryllium
- Boron
- Berkelium
Chemistry
Which are the alkaline earth metals?
- Calcium, Magnesium, Beryllium, Strontium, Barium, Radium.
- Calcium, Strontium, Barium.
- Calcium, Magnesium, Strontium, Barium.
- Calcium, Magnesium, Beryllium, Strontium, Barium.
Which are the alkaline earth metals?
ChemistryGrade-9
- Calcium, Magnesium, Beryllium, Strontium, Barium, Radium.
- Calcium, Strontium, Barium.
- Calcium, Magnesium, Strontium, Barium.
- Calcium, Magnesium, Beryllium, Strontium, Barium.
Chemistry
What happens to the boiling and melting points of the alkaline earth metals as you move down the group?
- Increases
- Decreases
- Remains the same
- Varies randomly
What happens to the boiling and melting points of the alkaline earth metals as you move down the group?
ChemistryGrade-9
- Increases
- Decreases
- Remains the same
- Varies randomly
Chemistry
What happens to the level of softness as we progress down the group of alkali metals?
- Increases
- Decreases
- Stays the same
- Varies randomly
What happens to the level of softness as we progress down the group of alkali metals?
ChemistryGrade-9
- Increases
- Decreases
- Stays the same
- Varies randomly
Chemistry
When rubidium is reacted with oxygen, the compound formed is:
- RbO
- Rb2O
- Rb2O2
- RbO2
When rubidium is reacted with oxygen, the compound formed is:
ChemistryGrade-9
- RbO
- Rb2O
- Rb2O2
- RbO2
Chemistry
What is the nature of the resultant solution when Ba is dissolved in water?
- Basic
- Acidic
- Amphoteric
- Neutral
What is the nature of the resultant solution when Ba is dissolved in water?
ChemistryGrade-9
- Basic
- Acidic
- Amphoteric
- Neutral
Chemistry
Among the following oxides which is the most basic:
- MgO
- BaO
- Cu2O
- BeO.
Among the following oxides which is the most basic:
ChemistryGrade-9
- MgO
- BaO
- Cu2O
- BeO.
Chemistry
Alkali metals react with water vigorously to form hydroxides and dihydrogen. Which of the following alkali metals reacts with water least vigorously?
- Li
- Na
- K
- Cs
Alkali metals react with water vigorously to form hydroxides and dihydrogen. Which of the following alkali metals reacts with water least vigorously?
ChemistryGrade-9
- Li
- Na
- K
- Cs
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Which metal is NOT an alkaline earth metal?
- Be
- Mg
- Sr
- Ba
Which metal is NOT an alkaline earth metal?
ChemistryGrade-9
- Be
- Mg
- Sr
- Ba
Chemistry
Which alkaline earth metal doesn't give flame colouration?
- Be
- Mg
- Ca
- Sr
Which alkaline earth metal doesn't give flame colouration?
ChemistryGrade-9
- Be
- Mg
- Ca
- Sr
Chemistry
Which oxidation number does group 2 show in its compounds?
- +1
- +2
- +3
- +4
Which oxidation number does group 2 show in its compounds?
ChemistryGrade-9
- +1
- +2
- +3
- +4
Chemistry
Which metal is most reactive in group 2?
- Magnesium
- Barium
- Strontium
- Calcium
Which metal is most reactive in group 2?
ChemistryGrade-9
- Magnesium
- Barium
- Strontium
- Calcium