The compound used in borax bead test for the detection of basic redicals to form colored bead is:
Correct answer: D. Na2B4O710H2O
- A. H2BO2
- B. (C2H5)3BO3
- C. Ca2B6O115H2O
- D. Na2B4O710H2O
Explanation
Per one molecule of borax, there are 10 molecules of water of crystallization. Hence, metaborate is formed in the borax bead test.
Last updated
About Salts and Hydrolysis
Salt hydrolysis explains how ions from weak acids or weak bases react with water and affect the pH of a solution. The content covers acidic, basic and neutral salts, hydrolysis equations, Ka, Kb and Kw relationships, degree of hydrolysis and buffer connections, distinguishing hydrolysis from simple acid-base neutralisation.
Practise Acids, Bases and Salts
314 free Acids, Bases and Salts MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemistry questions like this
Chemistry is on 12 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
Which of the following is an acidic salt?
NaHSO4 is a _ salt
Soda ash has the chemical formula:
A solid compound dissolves readily in water to give a weakly alkaline solution. On evaporation of the water, X was recovered unchanged. Which one of the following could be X?
Addition of 2% gypsum in cement leads to: