Question
______ is an important metal to form
amalgam.Solution
Amalgam : • Alloy obtained after mixing mercury with another metal is called Amalgam. • All metals but Iron, Platinum, Tungsten and Tantalum form Amalgam with mercury. • Siver and gold amalgams are used to fill tooth cavities in dentistry. • Metallic bonds (arising out of electrostatic forces) hold the metals together in amalgam. Mercury : Mercury is a transition metal present in period 6 and group 12 of the periodic table with 80 as the atomic number. • Mercury is the only metal, which is liquid at room temperature. • When placed in a tube meniscus of mercury is convex, opposite to concave meniscus of water. • It is used in clinical thermometers because of the property of its proportional expansion with increasing temperature. • Elemental mercury is toxic to living beings and Minamata disease is associated with its consumption.
- If 359 = 135, 482 = 64, 571 = 35, then 624 = ?
Select the option that is related to the third number in the same way as the second number is related to first number and the sixth number is related t...
Four letter-clusters have been given, out of which three are alike in some manner and one is different. Select the letter-cluster that is different.
If 49 × 23 = 41, 26 × 47 = 23 and 64 × 99 = 42, then 57× 68 = ?
In the following question, select the related word pair from the given alternatives.
Innovative: Creative :: Courageous: ?
F/N : 30/182 : : H/P : ?
Select the option that is related to the fifth term in the same way as the second term is related to the first term and fourth term is related to third ...
Select the option that is related to the fifth number in the same way as the second number is related to first number and the third number is related to...
- Select the option that follows the same pattern.
1924 : 1935 :: 4536 : ? :: 7284 : 8395 If K = 22, KIT = 80, then ‘KITE’ will be equal to?