Solved Past Papers MCQs of MDCAT for the preparation of Medical and Dental College Admission Test and other medical tests.
Q.101 The mobile phase in paper chromatography is usually
A) An organic liquid. C) Water.
B) Sulphuric acid. D) Silver nitrate.
Q.102 The amount of heat absorbed by one mole of solid at 1 atm when it melts into liquid form is denoted by __________
A) Δ Hv. C) Δ Hi.
B) Δ Hf. D) Δ Hs.
Q.103 In synthetic fibres __________ bonding is responsible for tensile strength.
A) Nitrogen. C) Oxygen.
B) Hydrogen. D) None of these.
Q.104 Boiling point of HF is __________ H2O.
A) Lower than. C) Equal to.
B) Higher than. D) Almost same as.
Q.105 __________ is necessary for development of leaves and it tends to accumulate in leaves and bark.
A) NO2. C) Gypsum.
B) Calcium. D) Nitrogen.
Q.106 Which of the following is pale yellow to reddish yellow in color?
A) Pb2 C) PbO.
B) PbO2. D) 2PbCO3.Pb(OH)2.
Q.107 In which of the following carbon is double bonded with itself?
A) Alkane. C) Alkene.
B) Ether. D) Alkyne.
Q.108 In this process, higher hydrocarbons can be cracked at lower temperature and lower pressure.
A) Thermal cracking. C) Steam cracking.
B) Catalytic cracking. D) Reforming.
Q.109 Acetic acid is called __________ acid.
A) Methanoic. C) Ethanoic.
B) Propanoic. D) Butanoic.
Q.110 Na may be denoted by __________ electron configuration notation
A) 1s2 2s1. C) [Ne] 3s1.
B) [Ar] 4s1. D) None of these.
Q.111 Which is the best drying agent in desiccators?
A) KOH. C) CaCl
B) Gypsum. D) Silica sand.
Q.112 100 m3 of a gas at 3 atm pressure and 27 oC is transferred to a chamber of 300 m3 volume maintained at a temperature of 327 oC. What will be the pressure in chamber?
A) 6 atm. C) 2 atm.
B) 4 atm. D) 1 atm.
Q.113 The crystals of __________ are ionic solids.
A) Sugar. C) Diamond.
B) Iron. D) NaCl.
Q.114 Which material possesses the highest pH?
A) Soft drinks. C) Milk of magnesia.
B) Bananas. D) Sea water.
Q.115 The electron present in a particular orbit __________ energy.
A) Releases. C) Absorbs.
B) Does not radiate. D) None of these.
Q.116 Al2F2SiO4 is named as
A) Gibbsite. C) Bauxite.
B) Emerald. D) Cryolite.
Q.117 Name the oxide in which N has the highest oxidation number.
A) Nitrous oxide. C) Nitrogen peroxide.
B) Nitric oxide. D) Nitrous anhydride.
Q.118 Sulphur has oxidation state of __________
A) ± 2. C) None of these.
B) + 4 and +6. D) Both A and B.
Q.119 CH3-O-CH3 is example of __________ isomerism.
A) Metamerism. C) Chain.
B) Functional group. D) Position.
Q.120 __________ are product of reaction of an alcohol and aromatic bi-functional acids.
A) Acrylic resins. C) PVCs.
B) Polyester resins. D) Polyamide resins.
ENGLISH
Q.121 He was __________ of all valuable possessions.
A) Robbed. C) Pinched.
B) Stolen. D) Established.
Q.122 The presence of armed guards ____________ us from doing anything disruptive.
A) Defeated. C) Irritated.
B) Excited. D) Prevented.
Q.123 Our flight was __________ from Lahore to Islamabad airport.
A) Diverted. C) Deflected.
B) Reflected. D) Shifted.
Q.124 I am __________ forward to our picnic scheduled in next month.
A) Looking. C) Seeing.
B) Planning. D) Going.
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