The determination of correct molecular weight from Raoults law is applicable to_________________?

Related Mcqs:

1. Oxygen (molecular weight = 32) diffuses at a rate of 10cm3/min under the same conditions of temperature and pressure how fast will hydrogen (molecular weight = 2) diffuse ?

   A. 20cm3/min
   B. 40cm3/min
   C. 160cm3/min
   D. 2.5cm3/min

2. What is the molecular weight of Ammonia (NH3) ________ ?

   A. 17.031 g/mol
   B. 18.031 g/mol
   C. 19.031 g/mol
   D. 27.033 g/mol

   Submitted by: Rashid Mehmood

3. What is the molecular Weight of Nitric acid (HNO3 ) ?

   A. 63.012 g/mol
   B. 65.012 g/mol
   C. 70.012 g/mol
   D. 81.011 g/mol

   Submitted by: Rashid Mehmood

4. A brivalent metal has the equivalent weighr of 12. The molecular weight to its oxide will be_______?

   A. 24
   B. 32
   C. 36
   D. 40

   Submitted by: Muhammad Ali Kunbhar

5. The law of traids is applicable to__________?

   A. Li, Be, B
   B. F, Cl, Br
   C. Cl, Br, I
   D. Na, K, Rb

   Submitted by: Muhammad Ali Kunbhar

6. Ostwald’s dilution law applicable to:

   A. All electrolytes
   B. Strong electrolytes
   C. Non electrolytes
   D. Weak electrolytes 

   Submitted by: Said wali shah

7. Silver nitrate is used in laboratory as a reagent for the detection and determination of____________?

   A. Alkali metals
   B. Aldehydes
   C. Halides
   D. Ketones

   Submitted by: Muhammad Kamal

8. Molecular orbital which have higher energy than atomic orbitals is called___________________?

   A. Bonding molecular orbital
   B. Antibonding molecular orbital
   C. Hybrid orbital
   D. Super atomic orbital

9. By which method the molecular mass of benzene was determined as 78.108 ?

   A. Specific gravity method
   B. Vapour density method
   C. X-ray diffraction method
   D. Distillation methos

10. Product of Nucleophilic Substitution Uni Molecular reaction is in case of chiral substrate?

    A. Inversion
    B. Retention
    C. Recemic Mixture
    D. Stereospecific

    Submitted by: Safeullah Bullo