Chemistry
Grade-9
Easy
Question
Which Group 1 elements exhibit a lilac flame colour?
- Li
- Na
- K
- Rb
Hint:
Potassium
The correct answer is: K
- Li gives carmine red which is invisible through green glass.
- Na imparts bright yellow color in flame.
- K imparts lilac color when hold in flame.
- Rb produces violet color in flame.
Related Questions to study
Chemistry
What is the symbol for magnesium ?
What is the symbol for magnesium ?
ChemistryGrade-9
Chemistry
Ca is the symbol for:
Ca is the symbol for:
ChemistryGrade-9
Chemistry
Be is the symbol for:
Be is the symbol for:
ChemistryGrade-9
Chemistry
Which are the alkaline earth metals?
Which are the alkaline earth metals?
ChemistryGrade-9
Chemistry
What happens to the boiling and melting points of the alkaline earth metals as you move down the group?
What happens to the boiling and melting points of the alkaline earth metals as you move down the group?
ChemistryGrade-9
Chemistry
What happens to the level of softness as we progress down the group of alkali metals?
What happens to the level of softness as we progress down the group of alkali metals?
ChemistryGrade-9
Chemistry
When rubidium is reacted with oxygen, the compound formed is:
When rubidium is reacted with oxygen, the compound formed is:
ChemistryGrade-9
Chemistry
What is the nature of the resultant solution when Ba is dissolved in water?
What is the nature of the resultant solution when Ba is dissolved in water?
ChemistryGrade-9
Chemistry
Among the following oxides which is the most basic:
Among the following oxides which is the most basic:
ChemistryGrade-9
Chemistry
Alkali metals react with water vigorously to form hydroxides and dihydrogen. Which of the following alkali metals reacts with water least vigorously?
Alkali metals react with water vigorously to form hydroxides and dihydrogen. Which of the following alkali metals reacts with water least vigorously?
ChemistryGrade-9
Chemistry
Which metal is NOT an alkaline earth metal?
Which metal is NOT an alkaline earth metal?
ChemistryGrade-9
Chemistry
Which alkaline earth metal doesn't give flame colouration?
Which alkaline earth metal doesn't give flame colouration?
ChemistryGrade-9
Chemistry
Which oxidation number does group 2 show in its compounds?
Which oxidation number does group 2 show in its compounds?
ChemistryGrade-9
Chemistry
Which metal is most reactive in group 2?
Which metal is most reactive in group 2?
ChemistryGrade-9
Chemistry
What is the flame color of calcium?
What is the flame color of calcium?
ChemistryGrade-9
