The octane number of zero is assigned to____________?

Related Mcqs:

1. Octane rating of Gasoline can be increased by __________?

   A. Refining
   B. Cracking
   C. Reforming
   D. None of These

   Submitted by: Aamir khan Hullio

2. Colour in transition metal compounds is attributed to____________?

   A. Small sized metal ions
   B. Absorption of light in UV region
   C. Complete ns sub-shell
   D. Incomplete (n-1) d sub-shell

   Submitted by: Muhammad Ali Kunbhar

3. Which is the unit of (K) rate constant for zero order reaction ?

   A. s-1
   B. mol dm-3 s-1
   C. mol-1 dm3 s-1
   D. mol-2 dm6 s-1

4. The boiling point increases down the zero group element due to_________________?

   A. Ion dipole forces
   B. London forces
   C. Hydrogen bonding
   D. Dipole dipole forces

5. The diffusion of gases at absolute zero will be________________?

   A. Unchanged
   B. Slightly decreased
   C. Slightly increased
   D. Zero

6. Noble gases are so called zero group because they have:_________?

   A. Zero Valency
   B. Zero Electronegativity
   C. Zero Electron Affinity
   D. Both A and B
   E. All of these

   Submitted by: Raza Samejo

7. Which of the following is known as absolute zero?

   A. 0C°
   B. 273K
   C. 273.16C°
   D. -273.16C°

   Submitted by: Zahid Jagirani

8. The tip of funnel should touch the wall of the breaker in order to avoid____________________?

   A. Inconsistent flow of filtration
   B. splashing
   C. premature crystallization
   D. all of above

9. Distance at which attractive forces of hydrogen overcome repulsive forces is __________ ?

   A. 75.2pm
   B. 75.3pm
   C. 75.5pm
   D. 75.4pm

   Submitted by: Rashid Mehmood

10. Ostwald’s dilution law applicable to:

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

    Submitted by: Said wali shah