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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.
Rohan was . . . . . till death by the dacoits.
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The team as well as the coach ______ practicing ...
Finally, what I have been eagerly waiting for / the summer vacations are quite near.
Our armed forces are . . . . . . those of any other country in the world.
I can’t believe you did that!
Why are you late?
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Neither you nor your friends ______ any idea abo...
Identify the form of each sentence given here from among the choices given below it :
Please hand me the book.
A) Maverick
B) Paucity
C) Ostensible
D) Unfeigned
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The book as well as the pen ______ on the table....