Carbon in wrought iron is present as_________?
A. Silicon carbide B. Iron carbide C. Graphite D. Partly as iron carbide and partly as graphite
Chemistry MCQs
If steel is heated to a temperature well below red heat and is then cooled slowly, the process is called_________?
A. Annealing B. Quenching C. Tempering D. Nitriding
The substance used in cancer therapy is___________?
A. Fe B. Co C. Ni D. Rn
Transition elements, in general, exhibit the following properties, except one. Name that property?
A. Variable oxidation state B. Natural Radioactivity C. Tendency to form complexes D. Formation of alloys
Which of the following alloys contain(s) Cu and Zn?
A. Bronze B. Brass C. Gun-metal D. Type metal
The maximum oxidation shown by manages is_________?
A. +2 B. +4 C. +5 D. +7
Colour in transition metal compounds is attributed to____________?
A. Small sized metal ions B. Absorption of light in UV region C. Complete ns sub-shell D. Incomplete (n-1) d sub-shell
Which of the following statements is false about transition metals?
A. They form complexes B. They show variable valency C. All transition metal compounds are paramagnetic D. They form coloured ions
The by-product of the process of Saponification is___________?
A. Methanol B. Glycol C. Glycerol D. Sodium hydroxide
Polyethylene Glycols are used in the preparation of which type of detergents?
A. Cationic detergents B. Anionic detergents C. Non-ionic detergents soap D. All of above