Which of the following is a substance?

Related Mcqs:

1. Which of the following is the hardest substance?

   A. Copper
   B. Diamond
   C. Iron
   D. Silicon

   Submitted by: ABDUL HAYEE

2. 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.

3. Which of the following substance do not show continuous solubility curve ?

   A. KCIO4
   B. Na2SO4. 10H2O
   C. K2Cr2O7
   D. PbCl2

4. Which of the following is the lightest substance?

   A. Uranium
   B. Hydrogen
   C. Oxygen
   D. Nitrogen

   Submitted by: Irfan

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

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

6. 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

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

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

8. Substance used in match sticks ?

   A. Sulphur
   B. Zinc
   C. Acid
   D. Phosphorus

   Submitted by: Mansoor Ahmed Suhag

9. Substance whose atoms can be split are known as __________ materials.

   A. Fusionable
   B. Fissionable
   C. Combustible
   D. None of these

   Submitted by: Rashid Mehmood

10. The Substance which resist in change in PH is called?

    A. Neutralization
    B. Osmosis
    C. Buffer
    D. Active transport

    Submitted by: Chakar Hussain Shar