Saturday 28 January 2017

Chemistry - Part 2

Chemistry - Part 2


Give the Answer:

1 - Determination of the chemical components in a given sample.
2 - A substance that reacts with another substance.
3 - A important laboratory reagent .
4- The group of elements are generally colored. 
5 - The process of formation of an insoluble solid when solution are mixed.
6 - A metallic hydoxide soluble in excess of NH4OH.
7 - A metallic oxide soluble in excess of caustic soda solution.
8 - Two colored metal ions.
9 - A metal that evolves a gas which burns with a pop sound when boiled with 
     alkali solutions.
10 - Two bases which are not alkalis  but dissolve in strong alkalis.
11 - A colored metallic oxide which dissolves in alkalis to yield colorless solutions.
12 - A colorless cation not a representative element.
13 - The metal chloride which is soluble in Ammonium hydoxide solution.
14 - The salt which gives Ammonia gas when heated with NaOH.
15 - A salt of nitrate which is soluble in water. 
16 - A strong alkali.
17 - A weak alkali.
18 - The substances which show acidic as well as basic character.
19 - A temperature scale with absolute zero as the starting point .
20 - The reactant which is completely used up in a reaction .
21 - The simplest formula which gives the simplest ratio in whole numbers of atom of 
        different elements present in one molecule of the compound.
22 - A salt which is a weak electrolyte.
23 - an inert electrode and an active electrode.

24 - A positively charged non-metallic ion .
25 - The electrode at which reduction occurs.
26 - A non - metallic element which is a conductor of electricity.
27 - A base which is a weak electrolyte.
28 - The electrode which is connected to the positive terminal of battery.
29 - An electrolytic cell and Crucible made of.
30 - It is an electrolytic process of depositing one metal over another metal or
       passing an electric current through a aqueous solution of a compound of the                metal.
31 - A liquid non- metal .
32 - A metal with dull appearance .
33 - A metal with low melting and bowling point.
34 - A nonmetal with very high melting and bowling point.
35 - A metal which can float on water.
36 - A metal which can be cut with knife.
37 - A metal which is a bad conductor heat and electricity.
38 - A non metal which is ductile.
39 - A non metal used in alloy.
40 - A non malleable metal.
41 - A non metal which can form positive ion.
42 - Two metals which are liquid at room temperature.
43 - Two metals react with cold water.
44 - The compound responsible for green deposit on the surface of copper.
45 - A metal whose oxide is reduced only by carbon.
46 - The compound responsible for black coating on silver when it get exposed to 
        the atmosphere.
47 - The compound responsible for white deposit on the surface of lead when it                   comes in contact of moist.
48 - A slow oxidation of iron by oxygen of the air in presence of moisture .
49 - It is a chemical action on the surface of a metal by moisture ,air, or chemical.
50 - The earthly impurities which are  associated with the minerals.
51 - The minerals from which the metals are extracted commercially at low cost with 
        minimum efforts.
52 - A substance that is added in a furnace to remove  impurities.
53 - It is a process of extraction of a metal from its ore.
54 - The process of heating of ore in the excess of air.
55 - The process of heating of ore in the absence of air.
56 - The alloy used in the preparation of steel.
57 - The most abundant metal in the earth.
58 - The acid does not attack the metal Aluminium.
59 - The process of joining broken iron girders ,rails and machine part.
60 - A homogeneous mixture of two or more metals combined in a definite                            proportion .
61 - Black metallic oxide which reacts with hydrochloric  acid to give a colored                     solution.
62 - Two colorless gases ,which when mixed produce a white solid.
63 - Two gases which chemically combine to form a liquid.
64 - A chloride which is soluble in excess of Ammonium hydroxide.
65 - The chemical in which gold can be dissolved.
66 - The experiments which demonstrate that hydrogen chloride is soluble in water.
67 - The gas produced when chlorine water is exposed to sunlight.
68 - The organic solvent in which hydrochloric gas soluble.


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