Home
Class 12
CHEMISTRY
A few grams of borax is dissolved in dis...

A few grams of borax is dissolved in distilled water . The pH range of resultant solution is

A

`1-4`

B

`4-7`

C

`2-5`

D

`7-14`

Text Solution

Verified by Experts

The correct Answer is:
D
The aqueous solution of borax is alkaline due to hydrolysis. Borax is therefore used as a water softner and cleaning agent.
`Na_(2)B_(4)O_(7)+ 2H_(2)O rarr underset(("Strong alkali"))(2NaOH)+underset(("Weak acid"))(H_(2)B_(4)O_(7))` Therefore the pH of solution is more than 7.
Promotional Banner

Topper's Solved these Questions

  • AP EAMCET ENGINEERING ENTRANCE EXAM

    TS EAMCET PREVIOUS YEAR PAPERS|Exercise Chemistry|40 Videos

Similar Questions

Explore conceptually related problems

0.1 gram mole of urea is dissolved in 100g. of water. The molality of the solution is

0.1 gram mole of urea is dissolved in 100g. of water. The molality of the solution is

6g. of Urea is dissolved in 90g. of water. The mole fraction of solute is

When borax is dissolved in water, the product formed is

6 g. of Urea is dissolved in 90 g. of water. The mole fraction of solute is

Four grams of NaOH solid are dissolved in just enough water to make I litre of solution. What is the [H^(+)] . of the solution ?

50 ml of 0.2 N H_(2) SO_(4) is mixed with 100 ml of 0.4 N KOH solution and 1.85 lit of distilled water is added . The pH of resulting solution is (log 1.5 = 0.176)

10.6 g of a substance of molecular weight 106 was dissolved in 100 ml 10 ml of this solution was pipetted out into a 1000 ml flask and made up to the mark with distilled water. The molarity of the resulting solution is

TS EAMCET PREVIOUS YEAR PAPERS-AP EAMCET ( ONLINE QUESTION PAPER 2018 SOLVED)-CHEMISTRY
  1. Identify the correct statements from the following . (i) The number ...

    Text Solution

    |

  2. Observe the following compounds. (i) CaCO(3) " " (ii) MgSO(4)...

    Text Solution

    |

  3. A few grams of borax is dissolved in distilled water . The pH range of...

    Text Solution

    |

  4. An element (X) when burnt in oxygen forms neutral XO and acidic XO(2)....

    Text Solution

    |

  5. Match the following The correct answer is

    Text Solution

    |

  6. In the following three dimensional structure of CH(4) the bods are lab...

    Text Solution

    |

  7. Identify X and Y in the following reactions

    Text Solution

    |

  8. Which one of the following has highest dipole moment ?

    Text Solution

    |

  9. If the side length of a face centered unit cell of a metal is 400 pm a...

    Text Solution

    |

  10. If CO(2) gas having a partial pressure of 1.67 bar is bubbled through ...

    Text Solution

    |

  11. 12.25 g of CH(3)CH(2)CHCICOOH is added to 250 g of water to make a sol...

    Text Solution

    |

  12. Assertion (A) : The charge on one mole of electrons is one Faraday. ...

    Text Solution

    |

  13. If the half lives of the first order reaction at 350 K and 300 K are 2...

    Text Solution

    |

  14. Which one of the following is present in gas mask?

    Text Solution

    |

  15. The pair of oxides which can be leached out when powdered bauxite cont...

    Text Solution

    |

  16. Nitrous acid was disproportionated to form water HNO(3) and X .In anot...

    Text Solution

    |

  17. Identify the correct statements from the following . (i) Oxygen show...

    Text Solution

    |

  18. Which one of the following reactions doses not take place ?

    Text Solution

    |

  19. Identify the reactions in which dichromate acts as an oxidising reagen...

    Text Solution

    |

  20. The green coloured complex ion of nicked in its aqueous solution is

    Text Solution

    |