Chemistry Solved MCQs of HEC HAT-UG-E HAT-UG-M Test
Q.1 Which type of bonding is present in NH4Cl?
A) Ionic. C) Coordinate covalent.
B) Covalent. D) All of these.
Q.2 When CuSO4 is electrolyzed in aqueous solution using copper electrodes, then the substance
which deposits at the cathode is:
A) Copper metal. C) Hydrogen.
B) Copper ions. D) Oxygen.
Q.3 Aldehydes can be synthesized by the oxidation of
A) Primary alcohols. C) Organic acids.
B) Secondary alcohols. D) Inorganic acids.
Q.4 The products of the fermentation of a sugar are ethanol and
A) Water. C) Carbon dioxide.
B) Oxygen. D) Sulfur dioxide.
Q.5 __________ serve as carriers of heredity from one generation to the other.
A) Lipids. C) Formaldehydes.
B) Caseins. D) Nucleoproteins.
Q.6 __________ extraction is controlled by partition law.
A) Iodine. C) Solvent.
B) Benzoic acid. D) Stationery.
Q.7 The process of effusion is best understood by __________ law.
A) Graham’s. C) Boyle’s.
B) Charles’s. D) None of these.
Q.8 __________ has dipole moment.
A) CO. C) Benzene.
B) CO2. D) All of these.
Q.9 __________ is used as catalyst in Haber’s process for NH3 gas manufacture.
A) Iron. C) Copper.
B) Carbon. D) Silver.
Q.10 In many of its properties __________ is quite different from the other alkali metals.
A) Li. C) Na.
B) Be. D) K.
Q.11 Which element forms long chains alternating with oxygen?
A) Carbon. C) Nitrogen.
B) Silicon. D) All of these.
Q.12 The percentage of carbon in medium carbon steel is
A) 0.7-1.5. C) 0.2-0.7.
B) 0.1-0.2. D) 1.6-2.00.
Q.13 Name the rare halogen among the following.
A) F. C) I.
B) Cl. D) At.
Q.14 Which bond will break when electrophile attacks an alcohol?
A) O – H. C) Both A and B.
B) C – O. D) None of these.
Q.15 The extent of un-saturation in a fat is expressed as its
A) Acid number. C) Saponification number.
B) Iodine number. D) None of these.
Q.16 The process of filtration is used to separate __________ particles from liquids.
A) Radial. C) Insoluble.
B) Angular. D) Soluble.
Q.17 London forces are very significant in __________
A) Sulphur. C) Argon.
B) Phosphorous. D) Sugar.
Q.18 Which of the following formation is endothermic reaction?
A) 2H2(g) + O2(g) 2H2O(l). C) N2(g) + O2(g) N2O2(g).
B) C(s) + O2(g) CO2(g). D) None of these.
Q.19 Name the partially miscible liquids from the following?
A) Alcohol-ether. C) Benzene-water.
B) Nicotine-water. D) Both A and B.
Q.20 AlI3 (Aluminium Iodide) is electrically a __________
A) Conductor. C) Semiconductor.
B) Non-conductor. D) None of these.