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Which of the following metals was first discovered by man? 1 Bronze 2 Silver 3 Iron 4 Copper
3 13125Carbon, diamond and graphite are together called 1 Isomers 2 Allotropes 3 Isomorphs 4 Isotopes
3 16785Permanent hardness of water, due to sulphates of the metal, can be destroyed by the use of 1 Nitrates 2 Zeolites 3 Sulphontes 4 None of these
2 8140Which of the following is called a strategic metal? 1 Silicon 2 Germanium 3 Titanium 4 Uranium
4 10729Rust is 1 A mixture of Fe2O3 and Fe(OH)3 2 A mixture of FeO & Fe(OH)2 3 Fe2O3 only 4 A mixture of Fe2O3.3H2O and Feo
AFMC,
2 18086Among the various allogropes of carbon 1 Diamond is the hardest, lamp black is the softest 2 Diamond is the hardest, coke is the softest 3 Coke is the hardest, graphite is the softest 4 Diamond is the hardest, graphite is the softest
1 3715Liquefied Petroleum Gas consists of mainly 1 Methane, ethane and hexane 2 Ethane, hexane and noname 3 Methane, butane and propane 4 Methane, hexane and nonane
2 13985Which of the following gases is used as an illuminant in lamps used by hawkers? 1 Methane 2 Ethylene 3 Acetylene 4 Hydgrogen
3 11591Which of the following is in liquid form at room temperature? 1 Cerium 2 Sodium 3 Francium 4 Lithium
1 9902Which of the following is not an isotope of hydrogen? 1 Protium 2 Yitrium 3 Deuterium 4 Tritium
2 13438Which of the following is the basis of modern periodic table? 1 Atomic mass 2 Atomic number 3 Atomic size 4 Atomic volume
1 5911Post New General Science Questions
What are the important factors of cosmic rays?
BARC CHIF
Which was the international geo - physical year?
Name any two modern branches of Physical Science
what are the advantages and disadvantages of empirical knowledge?
a private address 172.116.0.0 will borrow ? bits from the HOST to give one 120 subnets - range = ?
Why is ice wrapped in gunny sacks to prevent it from melting
Which is the largest refractor telescope?
is the big bang theory correct, because as I wondered the explosion is too powerful that no one could survive after galaxies were created no life exist on it after the 3.5 billion years life exist so... my question is were is the life came from?
Which are the units of functioning in vssc?
the basic approach to science was established by:
Explain the Aesthetic and Moral values of Science
What are reflecting nebulae?
What is one light second?
Which is the largest comet?
