ECAT Chemistry MCQ's Test For Full Book With Answers

ECAT Chemistry MCQ's Test For Full Book

Sr. # Questions Answers Choice
1 All facts of chemistry must be in simple logical patterns because chemistry is a subject: Simple Complex Un-understandable Easy
2 E.N. Value of fluorine is: 2.1 2.5 3.5 4.0
3 Alkali and alkaline earth metals are basic oxides except: Li Be Fr Ba
4 Hydrides are: Ionic Covalent Intermediate All above
5 Binary compounds of hydrogens are called: Halides Hydrides Oxides Nitrides
6 Hydration energy depends upon: Change of Ion Size of Ion Charge to size ratio Heat changes
7 Oxidation state of boron, aluminium and gallium is: +1 +2 +3 +5
8 Oxidation state of an element in free state is: Its numebr of elemtrons lost Its number of electrons gained zero Its number of electrons shared
9 Which group elements are the least metallic in nature? IV-A V-A VI-A VII-A
10 Electron affinity value from higher to heavier element: Increase Decreases remains same Not effect
11 Ionization energy of sodium is (Kj/mol) 503 523 513 524
12 Atomic radius changes from top to bottom in a group.: Increases Decreases Remains same Sometimes increases & Decreases
13 Properties of metal are: Malleable and ductile Form basic oxides Tamish in air All are true
14 Sodium belongs to block of periodic table: S-Block p- block d- block f- bloci
15 Period Number 6 contains elements in it: 2 8 18 32
16 Element with higher oxidation state form oxides: Acidic Basic Ampholetic Peroxides
17 the element not known till Mandleev tabulated his periodic table: Carbon Hydrogen Aluminum Germanium
18 Newland's gave law: Triad's law Octaves law Period law Moderen periodic law
19 Modern Periodic table is based upon periodic function: Atomic mass Mass number Nuclide Number Atomic number
20 Mark the correct statement: All lanthanides are present in the same period. all halogens are present in he same period. All the alkali metals are present in the same group. All the noble gases are present in the same period.
21 A combination of glucose and fructose is called: Sucrose Table sugar a and b Lactose
22 Polyester resins have special use in: Clothing Paints Emulsion Floor covering
23 Polymer found by the combining of three different monomers is called: Homopolymer Copolymer Ter polymer Thermoplastic polymer
24 Two or more similar monomers combine to form: Homopolymer Copolymer Ter Polymer Thermoplastic polymers
25 Molar mass of high molecular w.f. polymers ranges form: 1000 to 10000 10000 to 100000 100000 to 1000000 1000000 to 10000000
26 The simplest separating unit of a polymer is called: Monomer Dimer Trimmer Macromer
27 Poly hydroxyl compounds of aldehyde ketones are: Carbohydrates Protiens Fats Lipids
28 Simple sugars are : Monosacchrides Disaccharides Oligo saccharides Trisaccharides
29 Simple sugars are : Monosacchrides Disaccharides Oligo saccharides Trisaccharides
30 Cotton has cellulose in it: 96% 97% 98% 99%
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