You are here: Home >> GK Quiz >> General Science Set No. 45

Online General Science Quiz Set No - 45

General Science questions have been taken from previous years question papers of different competitive examinations such SSC CGL, SSC CHSL, CDS, NDA, Bank, State PSC, Railways, MAT, CAT, etc.

441) Which of the following is used for correcting myopic eyes?
A) Cylindrical Lens
B) Convex Lens
C) Concave Lens
D) None of these

442) Which of the following is used for removing air bubbles from glass during its manufacture ?
A) Fledspar
B) Arsenic oxide
C) Potassium Carbonate
D) Soda Ash

443) Which of the following is used in beauty parlours for hair setting ?
A) Phosphorus
B) Sulphur
C) Chlorine
D) Silicon

444) Which of the following is used in making artificial sweetener saccharine ?
A) Benzene
B) Toluene
C) Phenol
D) Aniline

445) Which of the following is used in making smoke bombs ?
A) Sulphur
B) Phosphorus
C) Hydrogen
D) Carbon

446) Which of the following material is used to prepare blue-black ink ?
A) Gallic acid
B) Tannic acid
C) Ferrous sulphate
D) All of these

447) Which of the following metals can displace hydrogen from dilute acids ?
A) Zinc
B) Gold
C) Copper
D) Silver

448) Which of the following metals forms an amalgum with other metals ?
A) Lead
B) Tin
C) Zinc
D) Mercury

449) Which of the following metals react with nitrogen to form nitride ?
A) Sodium
B) Potassium
C) Magnesium
D) None of these

450) Which of the following ores does not contain iron?
A) Haematite
B) Magnetite
C) Limonite
D) Cassiterite