Which of the following alloys contain(s) Cu and Zn?

Related Mcqs:

1. The element used for the formation of alloys is__________?

   A. Iron
   B. Calcium
   C. Mercury
   D. Chromium

   Submitted by: Aamir Hullio

2. Which of the following does not contain phosphorus ?

   A. Yolk of egg
   B. Bone
   C. Nerves
   D. Steel

3. Which of the solid does not contain covalent bond__________________?

   A. copper
   B. ice
   C. diamond
   D. graphite

4. The inhaled breath of diabetics patient contain acetone. A medical student wishes to test for diabetes by asking patient to bubble their breath through a reagent ?

   A. alkaline aquenous iodine
   B. aqueous bromine
   C. Fehling solution
   D. aqueous NaOH

5. Which of the solid does not contain covalent bond________________?

   A. Copper
   B. Ice
   C. Diamond
   D. Graphite

6. Commercial detergents contain mainly _____________?

   A. RCOON
   B. RONa
   C. RSNa
   D. ROsO3Na
   Muhammad Ali Kunbhar

7. Atoms of all the elements always contain in nucleus:

   A. Proton and neutron
   B. Neutron and electron
   C. Proton
   D. Neutron

   Submitted by: Shumail Bashir

8. The second nuclear weapons used in warfare  over Nagasaki, Japan, contain energy equal about of TNT?

   A. 1.5 kilotons
   B. 20 kilotons
   C. 25 kilotons
   D. 30 kilotons

   Submitted by: Said wali shah

9. When benzene is substituted by halogens only which one of the following halogens only which one of the following halogens is given the number one position in the ring while writing the name of compound ?

   A. Bromine
   B. Chlorine
   C. Fluorine
   D. Iodine

10. Which of the following is not characteristics of reversible reaction__________________?

    A. whole amount of reactant does not change into product
    B. chemical equilibrium is established
    C. a catalyst changes the direction of reaction
    D. rate of forward reaction decreases as reaction proceeds