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How is the Flame test performed?
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Answer / sa
First, take a clean wire loop of Platinum or nickel-
chromium . They may be cleaned by dipping in hydrochloric
or nitric acid, followed by rinsing with distilled or
deionized water.
Test the cleanliness of the loop by inserting it into a
bunsen burner flame. If a burst of color is produced, the
loop was not sufficiently clean.
Ideally, a separate loop is used for each sample to be
tested, but a loop may be carefully cleaned between tests.
The clean loop is dipped in either a powder or solution of
an ionic (metal) salt. The loop with sample is placed in
the clear or blue part of the flame and the resulting color
is observed.Na+ plus gives dazzling golden yellow flame,Ka+
gives crimson red & when look through blue glass gives
purple colour. Ba salt gives apple green colour , Ca++
gives brick red colour,etc
In this way Flame test is done.
| Is This Answer Correct ? | 18 Yes | 3 No |
Answer / bhavin mehta
First, take a clean wire loop of Platinum or nickel-
chromium . They may be cleaned by dipping in hydrochloric
or nitric acid, followed by rinsing with distilled or
deionized water.
Test the cleanliness of the loop by inserting it into a
bunsen burner flame. If a burst of color is produced, the
loop was not sufficiently clean.
Ideally, a separate loop is used for each sample to be
tested, but a loop may be carefully cleaned between tests.
The clean loop is dipped in either a powder or solution of
an ionic (metal) salt. The loop with sample is placed in
the clear or blue part of the flame and the resulting color
is observed.
In this way Flame test is done.
| Is This Answer Correct ? | 8 Yes | 2 No |
Answer / vani
Taken apinch of sample in Ni spatula & add 2to3 ml of HCl
or HNO3 & exposed to flame then identify the compound by
using corresponding colour
| Is This Answer Correct ? | 6 Yes | 3 No |
Answer / d.rekha
A Pinch of given salt is taken in to clean watch glass to
this 2-3 drops concentrated Hcl is added and made in to
past. A glass rod is dipped in to this watch glass and the
glass rod is introduced in to nonluminous flame and
observed the color which is coming from that flame and
identife the corresponding metal.
| Is This Answer Correct ? | 1 Yes | 3 No |
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