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Chemistry General Science Test Medium Mode MCQs With Answers
Question # 1
Elimination unimolecular reactions involve
Choose an answer
Second order kinetics
First order kinetics
Third order kinetics
Zero order kinetics
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Question # 2
Which set of elements is good loser of electrons
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F2. Cl2, Br2
N, P. As
O. S, Se
Li, Na, K
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Question # 3
Chemistry related to the study of environment affected by the chemicals and pollutants is called:
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Biochemistry
Physically chemistry
Pharmaceutical chemistry
Environmental chemistry
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Question # 4
In big/metropolitan cities, atmosphere is mostly polluted due to
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Radioactive fall out
Household waste
Pesticide residue
Automobile exhausts
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Question # 5
At constant temperature, volume of given mass of a gas is inversely proportional to pressure on it. This is statement of
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Charles law
Boyle's law
Hooks law
Grahams law
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Question # 6
Oxidation state of Mn' in KMnO4. K2MnO4, MnO2 and MnSO4 is in the order
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+7.+6.+2,+4
+6,+7,+2,+4
+7. +6.+4.+2
+4, +6, +7,+2
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Question # 7
Which of the following molecules has angel of 120°
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BeCl2
BF3
CH4
NH3
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Question # 8
In the reaction A2 (g) + 4B2 (g) <-----------> 2AB4 (g) such that ∆H < 0, the formation of AB4(g) will be favoured at
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Low temperature and high pressure
Low temperature and low pressure
High temperature and low pressure
High temperature and high pressure
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Question # 9
Which one of the following is more acidic
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Phenol
Carboxylic acid
Alcohols
Amines
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Question # 10
Any substance in the environment which adversely affects the human health and natural functioning of the Ecosystem is known as
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environment
hydrosphere
pollutant
biosphere
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Question # 11
Which of the following air pollutant is called quiet killer
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PAN
CO
NO
3
SO
3
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Question # 12
Phosphide ion has the electronic structure similar to that of
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Nitride ion
Fluoride ion
Sodium ion
Chloride ion
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Question # 13
Oxidation of ter-alcohol gives:
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Aldehyde
Formaldehyde
Ketone
Alkens
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Question # 14
Peptide bond is a key feature in
Choose an answer
Polysaccharide
Proteins
Nucleotide
Vitamins
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Question # 15
Choose an answer
Ethanol in the presence of concentrated sulphuric acid
Potassium hydroxide
Sodium
Sodium carbonate
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Question # 16
Chemical equilibrium involving reactants and products in more than one phase is called
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Static
Dynamic
Homogeneous
Heterogeneous
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Question # 17
The correct arrangement of increasing order of atomic radius among Na, K, Mg, Rb is
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Mg < K < Na < Rb
Mg < Na < K < Rb
Mg < Na < Rb < K
Na < K < Rb < Mg
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Question # 18
Statement enthalpy of combustion of H
2
is -285.8 KJ mole
-1
then which is the standard enthalpy of formation of water
Choose an answer
+285.8 KH mole
-1
-285.5 KJ mole
-1
Zero
-218 KJ mole
-1
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Question # 19
Which of the following pair of atomic numbers represents s-block elements?
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7, 15
6, 12
9, 17
3, 20
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Question # 20
DDT is a:
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Fungicide
Insecticide
Herbicide
All
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Question # 21
The raw materials for the manufacture of urea fertilizer is
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Hydrogen and ammonia
Steam, methane, ammonia
Methane and air
None of these
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Question # 22
The functional group isomer of dimethylether is
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Ethyl alcohol
Propyl alcohol
Diethyl ether
Butyl alcohol
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