The “Monazite” is an important ore of:
- (A) Iron
- (B) Aluminum
- (C) Thorium
- (D) Titanium
- (C) Thorium
Which of the following metals can join well with the glass?
- (A) Silver
- (B) Platinum
- (C) Nickel
- (D) Chromium
- (B) Platinum
Which type of uranium is used in nuclear reactors?
- (A) U-232
- (B) U-235
- (C) U-236
- (D) U-239
- (B) U-235
In modern periodic table, elements are arranged on the basis of:
- (A) Atomic number
- (B) Atomic weight
- (C) Molecular weight
- (D) Molecular number
- (A) Atomic number
Charcoal is a/an:
- (A) Crystalline
- (B) Amorphous
- (C) Hygroscopic
- (D) Water droplet
- (B) Amorphous
Which is the first element depicted on the Periodic Table?
- (A) Hydrogen
- (B) Helium
- (C) Carbon
- (D) Aluminum
- (A) Hydrogen
The filament of an electric bulb is made of:
- (A) Copper
- (B) Tungsten
- (C) Iron
- (D) Nichrome
- (B) Tungsten
Water does not boil at:
- (A) 80°R
- (B) 100°C
- (C) 212°F
- (D) 273K
- (D) 273K
Aspirin is the common name of:
- (A) Salicylic acid
- (B) Ethylene glycol
- (C) Acetylsalicylic acid
- (D) Methyl salicylate
- (C) Acetylsalicylic acid
A substance which can act both as an acid and a base is known as:
- (A) Allotropic
- (B) Amorphous
- (C) Amphoteric
- (D) Assimilation
- (C) Amphoteric
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