Home
Class 12
CHEMISTRY
In the crystalline solid MSO(4) , n H(...

In the crystalline solid `MSO_(4) , n H_(2)O` of molar mass 250 `g * mol^(-1)` , the percentage of anhydrous salt is 64 by weight . The value of n is -

A

2

B

3

C

5

D

7

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • PREVIOUS YEAR QUESTION PAPER 2019

    CHHAYA PUBLICATION|Exercise WBCHSE 2019 (SECTION II )|51 Videos
  • PREVIOUS YEAR QUESTION PAPER 2018

    CHHAYA PUBLICATION|Exercise NEET 2018|18 Videos
  • PREVIOUS YEAR QUESTION PAPER 2016

    CHHAYA PUBLICATION|Exercise NEET 2016 [ Phase- II]|16 Videos

Similar Questions

Explore conceptually related problems

A sulphate of a metal is isomorphous with ZnSO_(4)*7H_(2)O . In this salt, the percentage of the metal is 9.75. what is the atomic mass of the metal?

N_(2)H_(4) and H_(2)O_(2) show similarity in

The standard heats of combustion of CH_(4)(g) and C_(2)H_(6)(g) are -890 kJ*mol^(-1) and -1560 kJ*mol^(-1) , respectively. Why is the calorific value of C_(2)H_(6)(g) lower than that of CH_(4)(g) ?

Density (in g*mL^(-1) ) of a 3.60(M) H_(2)SO_(4) solution that is 29% H_(2)SO_(4) (Molar mass =98g*mol^(-1) ) by mass will be-

A sample of air consisting mainly of N_2 and O_2 is heated at 2500K till the given equilibrium attains- N_2(g) + O_2 (g) hArr 2NO(g) . If the value of equilibrium constant (K_c) at this temperature is 2.1xx10^(-3) and the percentage of number of moles of NO(g) in the above equilibrium mixture is 1.8 %, then what will be the mole fractions of N_2 and O_2 in the sample of air used'?

Given C (graphite) + O_(2) (g) to CO_(2) (g) Delta ""_(r) H^(0) = -393.5 k J * mol^(-1) H_(2) (g) + (1)/(2) O_(2) (g) to H_(2) O (l) , Delta ""_(r) H^(0) = -285.8 kJ * mol^(-1) CO_(2) (g) + 2 H_(2) O(l) to CH_(4) + 2 O_(2) (g) , Delta ""_(r)H^(0) = + 890 . 3 kJ * mol^(-1) Based on the above thermochemical equations , the value of Delta ""_(r) H^(0) at 298 K for the reation C(graphite) + 2 H_(2) (g) to CH_(4) (g) will be -

In the binomial expansion (1+ax)^(n) , the first three terms are 1 , 12x and 64 x^(2) ,then the value of n will be -

The mass of a non-volatile solute of molar mass 40 g mol^(-1) that should be dissolved in 114 g of octane to lower its vapour pressure by 20% , is

A 1 mol sample of N_(2)(g) reacts with 1 mol of O_(2)(g) to form 2 mol of NO(g),, where the increase in enthalpy is 180.6 kJ. Draw an enthalpy diagramm for this reaction.

What volume of a liquid will contain 4 mole ? Molar mass of liquid is 280 g mol^(-1) and its is 1.4 g//ml

CHHAYA PUBLICATION-PREVIOUS YEAR QUESTION PAPER 2019-WBJEE 2019
  1. In the equilibrium H(2) + I(2) hArr 2HI , if at a given temperature th...

    Text Solution

    |

  2. Which one of the following electronic arrangement is absurd ?

    Text Solution

    |

  3. The quantity h v// K(B) corresponds to -

    Text Solution

    |

  4. In the crystalline solid MSO(4) , n H(2)O of molar mass 250 g * mol...

    Text Solution

    |

  5. At S.T.P. the volume of 7.5 g of a gas is 5.6 L . The gas is -

    Text Solution

    |

  6. The second Ionisation Energy of the following elements follows the ord...

    Text Solution

    |

  7. The melting points of (i) BeCl(2) (ii) CaCl(2) and (iii) HgCl(2) follo...

    Text Solution

    |

  8. Which of these species will have non -zero magnetic moment ?

    Text Solution

    |

  9. The first electron affinity of C , N and O will be of the order -

    Text Solution

    |

  10. The H-N-H angle in ammonia is 107.6^(@) , while the H-P-H angle in pho...

    Text Solution

    |

  11. The conformations of n-butane , commonly known as eclipsed , gauche an...

    Text Solution

    |

  12. The correct order of the addition reaction rates of halogen acids with...

    Text Solution

    |

  13. The indicated atom is not a nucleophilic site in -

    Text Solution

    |

  14. Which of the following mixtures will have the lowest pH at 298 K ?

    Text Solution

    |

  15. For the equilibrium H(2) O(l) hArr H(2) O (v) , which of the followin...

    Text Solution

    |

  16. For a van der Waal's gas , the term ((ab)/(sqrt2)) represents some -

    Text Solution

    |

  17. At constant pressure , the heat of formation of a compound is not depe...

    Text Solution

    |

  18. Which of the following chemicals may be used to identify three unlabel...

    Text Solution

    |