Which of the following is mineral fiber ?
Which of the following is mineral fiber ?
A. Teflon
B. asbestos
C. saran
D. acrylic
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Gooch Crucibles are made up of________________?
Gooch Crucibles are made up of________________?A. plastic
B. fibre
C. porcelain
D. steelChemistry is given from ……language ?
Chemistry is given from ……language ?A. Latin
B. Greek
C. Arabic
D. None of theseChemistry, from the Greek word χημεία (khēmeia) meaning “cast together” or “pour together”, is the science of matter at the atomic to molecular scale, dealing primarily with collections of atoms, such as molecules, crystals, and metals.
A metallic atom loses its valence electron to form a/an _________?
A metallic atom loses its valence electron to form a/an _________?A. an anion
B. a cation
C. an anion – cation
D. none of theseAcid present in acid rain may be__________________?
Acid present in acid rain may be__________________?A. H2SO4
B. HNO3
C. both A and B
D. noneWhich one of the following alkali metals forms only normal oxide when it reacts with O2 ?
Which one of the following alkali metals forms only normal oxide when it reacts with O2 ?A. Lithium
B. Sodium
C. Potassium
D. RubidiumSolution having the property of a very little change in pH on adding a small amount of strong acid or base is called________________?
Solution having the property of a very little change in pH on adding a small amount of strong acid or base is called________________?A. buffer solution
B. normal solution
C. standard solution
D. neutral solution