p - block Elements
Borax on heating strongly above its melting point melts to a liquid, which then solidifies to a transparent mass commonly known as borax-bead. The transparent glassy mass consists of:
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Single Choice
Glassybead is obtained by heating :
A$$Na_{2}B_{4}O_{7.}\, 10H_{2}O$$
Correct Answer
B$$H_{3}BO_{3}$$
C$$B_{2}H_{6}$$
D$$Ca_{2}B_{6}O_{11}$$
Solution
heating $$Na_{2} B_{4}O_{7.} \, 10H_{2}O \rightarrow NaBO_{2} +B_{2} O_{3} $$
SIMILAR QUESTIONS
p - block Elements
The metal which does not give any color in the borax bead test is:
p - block Elements
The platinum wire which is used in borax bead test is dipped in:
p - block Elements
Which of the following compounds is formed in borax bead test?
p - block Elements
Borax-bead test is responded by ?
p - block Elements
Which of the following ions cannot be detected by the borax bead or microcosmic bead test?
p - block Elements
Glassy bead is of
p - block Elements
Blue bead can be of
p - block Elements
The flame used in Borax bead test is:
p - block Elements
Which of the following cations will turn a borax bead green in an oxidising flame?
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