Correct Answer : Option (A) - Calcium phosphate
Correct Answer : Option (B) - Zinc
Correct Answer : Option (B) - Vitamin B2-Riboflavin
Correct Answer : Option (C) - Silica
Silica is the major ingredient in virtually all types of glass including containers, flat glass, lighting glass, tableware, TV tubes and screens, decorative glass, fibreglass, optical glass and vacuum flasks.
Correct Answer : Option (D) - Tetraethyl Lead
Correct Answer : Option (B) - Pitchblende
Thus, radium is found in tiny quantities in the uranium ore uraninite and various other uranium minerals, and in even tinier quantities in thorium minerals. One ton of pitchblende typically yields about one seventh of a gram of radium
Correct Answer : Option (A) - Bromine
Correct Answer : Option (B) - Total Internal reflection
Correct Answer : Option (C) - Urea
Friedrich Wöhler was the first to synthesize an organic compound from an inorganic substance. In 1828, he synthesized urea by slowly evaporating a water solution of ammonium cyanate, which he had prepared by adding silver cyanate to ammonium chloride.
Correct Answer : Option (D) - Angular Momentum