Home
Class 12
CHEMISTRY
Hardness of water is 200 ppm. The normal...

Hardness of water is 200 ppm. The normality and molarity of `CaCO_3` in the water is
(a). `2xx10^(-6)(N,2xx10^(-6)M`
(b). `4xx10^(-2)N,2xx10^(-2)M`
(c). `4xx10^(-3)N,2xx10^(-3)M`
(d). `4xx10^(-1)N,2xx10^(-1)M`

A

19

B

20

C

15

D

10

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • SOME BASIC CONCEPTS OF CHEMISTRY

    VMC MODULES ENGLISH|Exercise IN - CHAPTER EXERCISE - D|28 Videos
  • SOME BASIC CONCEPTS OF CHEMISTRY

    VMC MODULES ENGLISH|Exercise IN - CHAPTER EXERCISE - E|28 Videos
  • SOME BASIC CONCEPTS OF CHEMISTRY

    VMC MODULES ENGLISH|Exercise IN - CHAPTER EXERCISE - B|9 Videos
  • SOME BASIC CONCEPT OF CHEMISTRY

    VMC MODULES ENGLISH|Exercise IMPECCABLE|49 Videos
  • STATES OF MATTER

    VMC MODULES ENGLISH|Exercise IMPECCABLE|50 Videos

Similar Questions

Explore conceptually related problems

Find the number : a. (4xx10^(5))+(3xx10^(2))+(7xx10^(0)) b. (3xx10^(6))+(8xx10^(3))+(1xx10^(1))

Simplify : (4xx10^(-2))-(2.5xx10^(-3))

Write the number whose expanded form is : (9xx10^(7))+(1xx10^(4))+(2xx10^(2))

{:("Column A"," ","Column B"),(2 xx 10^1 + 3 xx 10^(0) +4 xx 10^(-1) + 5 xx 10^(-2),,1 xx 10^(-3) + 2 xx 10^(-2) xx 10^(-2) + 3 xx 10^(-1) + 4 xx 10^(0) + 5 xx 10^(1)):}

What is the ionization constant of an acid if the hydronium ion concentration of a 0.40 M solution is 1.40xx10^(-4) M? (a) 1.96xx10^(-8) (b) 1.22xx10^(-9) (c) 4.90xx10^(-8) (d) 1.40xx10^(-6)

Compare the following numbers: (i) 2. 7xx10^(12) and 1. 5xx10^8 (ii) 4xx10^(14) and 3xx10^(17)

A block of mass 4 kg is suspended from the ceiling with the help of a steel wire of radius 2mm and negligible mass. Find the stress in the wire. (g=pi^(2)) (A) 4.0xx10^(6) N//m^(2) (B) 3.14xx10^(6) N//m^(2) (C) 3xx10^(5) N//m^(2) (D) 2.0xx10^(6) N//m^(2)

Find the value of n : (2^(3)xx5^(n+1)xx10^(2)xx5^(n-1))/(125xx5^(n-2)xx2^(7))=(25)/(4)

For a reaction 2NO(g) + 2H_(2)(g) rarr N_(2)(g)+2H_(2)O(g) the following data were obtained: |{:(,[NO] (mol L^(-1)),[H_(2)] (mol L^(-1)),"Rate" (mol L^(-1) s^(-1))),(1.,5 xx 10^(-3),2.5 xx 10^(-3),3 xx 10^(-5)),(2.,15 xx 10^(-3),2.5 xx 10^(-3),9xx10^(-5)),(3.,15 xx 10^(-3),10 xx 10^(-3),3.6 xx 10^(-4)):}| (a) Calculating the order of reactions. (b) Find the rate constant. (c ) Find the initial rate if [NO] = [H_(2)] = 8.0 xx 10^(-3) M

For the reaction A + B to products, what will be the order of reaction with respect to A and B? {:("Exp",[A](mol L^(-1)),[B](mol L^(-1)),"Initial rate (mol L^(-1) s^(-1))),(1,2.5 xx 10^(-4), 3 xx 10^(-5), 5 xx 10^(-4)),(2,5 xx 10^(-4),6 xx 10^(-5), 4 xx 10^(-3)),(3, 1xx 10^(-3), 6 xx 10^(-5), 1.6 xx 10^(-2)):}

VMC MODULES ENGLISH-SOME BASIC CONCEPTS OF CHEMISTRY-IN - CHAPTER EXERCISE - C
  1. How many molecules of water are present as water of crystallisation in...

    Text Solution

    |

  2. The volume in litres of CO(2) liberated at STP when 10 grams of 90% pu...

    Text Solution

    |

  3. In the reaction 4A + 2B + 3C to A4B2C3, the number of moles of product...

    Text Solution

    |

  4. The mass of sodium hydroxide produced when "175.5 g of NaCl" reacts wi...

    Text Solution

    |

  5. 30g Mg and 30g O(2) are reacted and the residual mixture contains:

    Text Solution

    |

  6. Calculate the mass of lime (CaO) obtained by heating 200kg of 95% pure...

    Text Solution

    |

  7. A silver coin weighing 11.34 g was dissolved in nitric acid When sodiu...

    Text Solution

    |

  8. Consider the following reaction sequence: S(8)(s) + 8O(2)(g) to 8SO(...

    Text Solution

    |

  9. 4Fe+3O(2) rarr 2Fe(2)O(3) (reference to iron )

    Text Solution

    |

  10. 30 ml of a mixture of oxygen (O(2)) and ozone (O(3)) was heated till o...

    Text Solution

    |

  11. Polythene can be produced from calcium carbide according to the follow...

    Text Solution

    |

  12. The density of liquid ethanol is 0.7892 g/ml at 20^@ C. If 1.2 mol of ...

    Text Solution

    |

  13. 200 ml of an aqueous solution of glucose (C(6)H(12)O(6)) has molarity ...

    Text Solution

    |

  14. The normality of HCl solution with a density of 1.19gm/ml containing 3...

    Text Solution

    |

  15. 10L of hard water required 5.6g of lime for removing hardness. Hence t...

    Text Solution

    |

  16. Permanent hardness is due to CI^(ɵ) and SO4^(2-) of Mg^(2+) and Ca^(2+...

    Text Solution

    |

  17. Equal moles of water and user are taken in a flask. What is mass perce...

    Text Solution

    |

  18. Hardness of water is 200 ppm. The normality and molarity of CaCO3 in t...

    Text Solution

    |

  19. 50 ml of water sample requires 10 ml of (M)/(50)HCl for complete neutr...

    Text Solution

    |

  20. The density of the solution of a salt X is 1.15 "g mL"^(-1). 20 mL of ...

    Text Solution

    |