Q. Which among the following first increases than decreases in a Period of a periodic table?
✅ Correct Answer: (C)
Valency
General Science MCQs and Notes
Q. Which among the following is used in preparing windows for X-Ray Tubes ?
✅ Correct Answer: (B)
Beryllium
Q. Mizoroki-Heck reaction is catalyzed by which of the following metals?
✅ Correct Answer: (C)
Palladium
Q. Which among the following acid is used to ascertain, whether pure Ghee has been adulterated with Vanaspati or Margarine?
✅ Correct Answer: (C)
Hydrochloric Acid
Q. When a piece of quicklime is dipped in water, it gives bubbles. This bubbling is due to which of the following?
✅ Correct Answer: (C)
Water Vapour
Q. Which among the following is ―Fool‘s Gold‖ ?
✅ Correct Answer: (B)
Iron Sulfide
Q. Which among the following makes Chile saltpetre different from saltpetre?
✅ Correct Answer: (B)
Sodium
Q. Consider the following:
Copper
Zinc
Tin
Gun Metal is the alloy of which among the above?
Copper
Zinc
Tin
Gun Metal is the alloy of which among the above?
✅ Correct Answer: (D)
1, 2 & 3
Q. The color ―Carmine‖ is a shade of which among the following colors?
✅ Correct Answer: (A)
Red
Q. Gypsum is added to Cement so that, _________?
✅ Correct Answer: (B)
setting of cement can be slowed