The mass of P4O10 that will be obtained from the reaction of 1.33 gram of P4 and 5.07 of oxygen is___________?

Related Mcqs:

1. If a compound contains 24 gram of carbon 2 gram of hydrogen and 64 gram of oxygen then its empirical formula will be________?

   A. C2H2O4 B. CH2 C. CH2O D. CHO2 Submitted by: Raza Samejo...

2. A sample of an iron and oxygen ore has a mass of 35.8 grams. The iron in the compound has a mass of 27.9 grams. What is the percent iron in the ore?

   A. 74% Fe B. 75% Fe C. 77% Fe D. 78% Fe Submitted by: Muhammad Ali Kunbhar...

3. Equal masses of methane and oxygen are mixed in empty container at 250?(C) The fraction of total pressure exerted by oxygen is___________________?

   A. one / seventeen B. sixteen / seventeen C. one / three D. two / three...

4. The number of peaks obtained in mass spectrometry shows____________________?

   A. Relative abundance B. Average mass of element C. Number of isotopes D. Relative isotopic mass...

5. When aquious bromine is added to aqueous phenol a creamy white ppt is obtained. What does this reaction show ?

   A. phenol is unsaturated B. 2-bromophenol is insoluble in water C. a hydroxy group makes the benzene ring more susceptible to electrophilic attack D. acid-base reaction...

6. Mass spectrometer is used to determine Mass number of isotopes and___________________?

   A. Atomic number B. Relative abundance C. Electronic configuration D. All of the above...

7. The number of atoms present in 21.6 gram of silver (atomic weight = 108) are same as the molecules in__________?

   A. 1.8 gram of H2O B. 12 moles of KMnO4 C. 0.6N H2SO4 D. 4.6 gram of C2H5OH Submitted by: Muhammad Ali Kunbhar...

8. The heat energy produced when the human body metabolises 1 gram of fat is__________?

   A. 30 KJ B. 1 KJ C. 39 KJ D. 29 KJ Submitted by: Muhammad Ali Kunbhar...

9. Energy of activation for backward reaction is less than forward reaction for ___________ reactio?

   A. Endothermic B. Exothermic C. Moderate D. Fast...

10. What will be the order of reaction of a reaction whose rate can be expressed as R = K [A] [B] ?

    A. Zero B. One C. Two D. Three...