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Which of the following compound is forme...

Which of the following compound is formed in borax bead test?

A

`B_(2)O_(3)`

B

`Na_(2)B_(4)O_(7)`

C

`Na_(3)BO_(3)`

D

`B_(2)O_(3)+NaBO_(2)`

Text Solution

Verified by Experts

The correct Answer is:
4
`Na_(2)B_(4)O_(7).10H_(2)Ounderset(-10H_(2)O)overset(740^(@)C)rarrunderset("glassy bead")(2NaBO_(2)+B_(2)O_(3))`
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RESONANCE ENGLISH-TEST PAPERS-FST 01
  1. In which pair is the stronger bond found in the first species ?

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  2. Which one of the following statements is correct in relation to the io...

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  3. Which of the following compound is formed in borax bead test?

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  4. 14 moles of A and 20 moles of B, 8 moles of C is formed in the followi...

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  5. One mole of an ideal diatomic gas (C(v)=5cal) was transformed form in...

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  6. Which of the following orbitals has/have zero probability of finding t...

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  7. The melting point of a solid is 300K and its latent heat of fusion is ...

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  8. The set representing the correct order of the first ionisation potenti...

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  9. Which of the following statements are correct ? (i) Amongs O(2),O(2)...

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  10. Which of the following statements is not correct ?

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  11. The reagent which is not used for removing the permanent hardness of w...

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  12. The compounds(s) formed upon combustion of sodium metal in excess air...

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  13. In SiO(4)^(4-) the tetrahedral molecule two oxygen atoms are shared in

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  14. What is the relation between methyl ethanoate and 3- hydroxy propanal ...

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  15. Which of the following is not true for maleic acid and fumaric acids?

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  16. A compound having molecular formula C(4)H(10)O can show

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  17. An alpha particle after passing through a potential difference of 2×10...

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  18. Identify the pair of enantiomers amongst the given pairs :

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  19. The value of M and N are respectively.

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  20. In lassaigne test thio urea is converted into :

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