The Substance which resist in change in PH is called?

Related Mcqs:

1. The highest temperature at which a substance can exist as a liquid is called its______________?

   A. Critical temperature
   B. Standard temperature
   C. Absolute temperature
   D. Upper consulate temperature

2. The process by which a substance absorbs moisture upon exposure to atmosphere is called?

   A. Efflorescence
   B. Dehydrogenation
   C. Desalination
   D. Deliquescence 

   Submitted by: Farhan Rana

3. If a physical and chemical change takes place at a constant pressure then the heat change during the process is called__________________?

   A. Heat of transition
   B. Heat of fusion
   C. Enthalpy change
   D. All of above

4. Which of the following is a substance?

   A. Sea water
   B. Brass
   C. Tape water
   D. Graphite
   E. Sand

   Submitted by: Mansoor Ul Haque

5. As a substance moves from a solid to a liquid all of the following changes occur except ?

   A. molecules become more disordered.
   B. K.E of the molecules decreases
   C. intermolecular forces become weaker.
   D. molecules move more frequently.

6. Paramagnetic behaviour of substance is measured by a balance called___________________?

   A. Analytical balance
   B. Guoys balance
   C. Electrical balance
   D. Single beam balance

7. A substance having very high vapour pressure at its melting point on heating will show_______________?

   A. Melting
   B. Sublimation
   C. Decomposition
   D. Condensation

8. A substance which increases the reactivity of enzyme is called_________________?

   A. Promoters
   B. Inhibitors
   C. Stimulators
   D. Non-activators

9. A substance is analyzed and found to have an emperical formula of CH2 and a molar mass of 56g/mole. What is the molecular formula of the compound?

   A. C2H4
   B. C3H6
   C. C4H8
   D. C5H10

   Submitted by: Muhammad Ali Kunbhar

10. The properties which do not depend on mass of the substance are _____________?

    A. Extensive properties
    B. Colligative properties
    C. intensive properties
    D. None of These

    Submitted by: Aneela shabbir