(a) Zinc rods
(b) Molten caustic soda
(c) Heavy water
(d) Ordinary water
Answer:
Which one is known as father of periodic table
(a) Bohr
(b) Mendeleev
(c) Lavoisier
(d) Rutherford
Answer:
Which one of the following contains maximum percentage of carbon?
(a) Wrought iron
(b) High speed steel
(c) Cast iron
(d) Stainless steel
Answer:
A naturally occurring substance from which a metal can be profitably extracted is called
(a) Flux
(b) Ore
(c) Mineral
(d) Gangue
Answer:
Wolframite ore is separated from tinstone ore by the process of
(a) Roasting
(b) Electromagnetic
(c) Smelting
(d) Calcination
Answer:
Which of the following processes is used to remove reducible oxides from the metal?
(a) Poling
(b) Electro refining
(c) Liquation
(d) Cupellation
Answer:
Which of the following alkaline earth metal shows properties similar to Al?
(a) Ba
(b) Ca
(c) Sr
(d) Be
Answer:
Which one of the following buildings is not located in Fatehpur Sikri?
(a) Panch Mahal
(b) Qila-i-Kuhna Mosque
(c) Buland Darvaza
(d) Anup Talao
Answer:
Which one of the following is the most important feature of Harappan cities?
(a) Wide roads
(b) Planned layout
(c) Huge buildings
(d) Large size
Answer:
Which one of the following cities was most extensive in area?
(a) Dholavira
(b) Kalibangam
(c) Mohenjodaro
(d) Harappa
Answer: