Which Vitamin gets destroyed on heating?

Related Mcqs:

1. Permanent hardness of water due to sulphate of metals can be destroyed by the use of ________ ?

   A. Zeolites B. Sulphonides C. Lime D. Nitrates Submitted by: Rashid Mehmood...

2. The increasing vapor pressure caused by heating a liquid is due to___________?

   A. increase inter-molecular interactions B. increasing potential energy of molecules C. increasing kinetic energy of molecules D. decreasing surface tension Submitted by: Mansoor Ul Haque...

3. The atmosphere near the earth’s surface is “heated from below.” Which of the following does not significantly contribute to this heating _____________________?

   A. Conduction of heat upward from a hot surface B. Convection from a hot surface C. Absorption of infrared energy that has been radiated from the surface D. Heat energy from the earth’s interior Submitted by: Mansoor Ul Haque...

4. Heating element of an electric heater is made up of___________?

   A. Tungsten B. Graphite C. Chromium D. Nichrome Submitted by: Ashfaque Ali Khoso...

5. Coke is made by heating coal in the absence of air at__________?

   A. 700 °C B. 900 °C C. 1300 °C D. 1700 °C Submitted by: Ashfaque Ali Khoso...

6. Which body part gets older first?

   A. Face B. Feet C. Hands D. None of these Submitted by: ENGR. HAFIZ RASHEED...

7. Brass gets discoloured in air because of the presence of which of the following gases in air ________ ?

   A. Carbon dioxide B. Oxygen C. Nitrogen D. Hydrogen sulphide Submitted by: Rashid Mehmood...

8. Which vitamin is available to the human body through sun bathing?

   A. Vitamin A B. Vitamin D C. Vitamin K D. Vitamin B12 Submitted by: ABDUL HAYEE...

9. What is the one of the other name of Vitamin “A”?

   A. Riboflavin B. Ascorbic Acid C. Retinol D. Thiamin Submitted by: Munwar Ali Sohu...

10. Vitamin B1 is also known as____________?

    A. Riboflavin B. Retinol C. Thiamine D. Niacin Submitted by: Irum perveen...