Borax Bead Test in Chemistry

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What is the purpose of the Borax Bead Test?

To test the solubility of sodium carbonate

To form a colored bead for identification purposes

To prepare a bead of borax for chemical analysis

To detect the presence of metals by fusing the sample in the bead (correct)

In the Borax Bead Test, what causes the color in the bead that helps identify the metal present?

Borate ion (BO2) (correct)

Metaborate formed

Orthophosphate formed

Sodium carbonate

Which element reacts with bromide ion (Br2) to form a colored compound during the Borax Bead Test?

Cobalt (correct)

Chlorine

Magnesium

Iron

What happens when chlorine water reacts with bromide ion (Br2)?

Bromide ion converts to free bromine (Br2) Signup and view all the answers

Which chemical compound does Fe(NO3)3 oxidize among the following ions?

Iodide ion Signup and view all the answers

What is the effect of KMnO4 on bromide ion (Br2) when present in an acidified solution?

Oxidizes bromide to free bromine (Br2) Signup and view all the answers

What color does a BROWN Ring form when H2SO4 reacts with 2 NO3 and 4 H2SO4?

Brown Signup and view all the answers

Which reagent is used to test for the presence of ammonia when reacting with Nitrate ion?

Nessler’s Reagent Signup and view all the answers

What color does Brucine in H2SO4 turn in the absence of Chlorates when interacting with Nitrates?

Red Signup and view all the answers

What happens to the pink solution when MnCl2 reacts with NO2 and HCl solutions?

It turns brown Signup and view all the answers

Which gas is produced when Dilute HCl solution decomposes?

NO Signup and view all the answers

What does AgNO3 solution form in dilute solutions after reacting with the ion?

White ppt. Signup and view all the answers

What happens when ARSENATE ION (AsO4) is treated with Ammonium Molybdate Sol’n at 20°-30°C?

It remains in solution Signup and view all the answers

What is the effect of Dilute HCl on BORATE ION (BO2)?

No visible effect Signup and view all the answers

When heated with HNO3, what does ARSENITE ION (AsO3) form?

A ppt similar to Arsenate Signup and view all the answers

What happens when Magnesia Mixture is added to BROMIDE ION (Br2) solution?

It remains in solution Signup and view all the answers

What is the reaction of ARSENITE ION (AsO3) with KI solution?

Forms I2 gas Signup and view all the answers

How does BORATE ION (BO2) react with AgNO3 in a slightly acidic solution?

Forms a white precipitate Signup and view all the answers