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Home » Medical Papers » Aptitude Test - 8
Hassan
1.Osmotic pressure of a solution is __________ property.
A. Obligative.
B. Fractional.
C. Colligative.
D. Obligative.
2. Magnesium reacts with hydrogen at high pressure in the presence of catalyst __________ forming magnesium hydride.
A. Dolomite.
B. MgI2.
C. Mg3N2.
D. Dolomite.
3.Which element has the largest number of allotropic forms?
A. Phosphorous.
B. Sulphur.
C. Oxygen.
D. Phosphorous.
4.With increase in number of unpaired electrons, paramagnetism:
A. Increases.
B. Decreases.
C. Remains constant.
D. Increases.
5.Which metal is commonly used to remove air bubbles from molten metals?
A. Aluminium.
B. Copper.
C. Sodium.
D. Aluminium.
6.Which of the following bonds has minimum bond energy?
A. C – F.
B. C – Cl.
C. C – I.
D. C – F.
7.Which of the following does not react with water?
A. Li.
B. Na.
C. Mg
D. Li.
8.Al2O3(SiO2).2H2O is called
A. Clay.
B. Talc.
C. Asbestos.
D. Clay.
9.CaO forms fertilize slag by reacting with
A. P2O5.
B. Fe2O3.
C. Silica.
D. P2O5.
10.__________ is colorless volatile liquid at room temperature.
A. HCl.
B. HF.
C. HI.
D. HCl.
11.Hydrogen passed through phenol at 150 ºC in the presence of __________ catalyst gives cyclohexanol.
A. Tin.
B. Nickel.
C. Iron.
D. Tin.
12.Ethanol-water is __________ mixture.
A. Azeotropic.
B. Ideal.
C. Benedict’s.
D. Azeotropic.
13.The mobile phase in paper chromatography is usually
A. An organic liquid.
B. Sulphuric acid.
C. Water.
D. An organic liquid.
14.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.
B. Δ Hf.
C. Δ Hi.
D. Δ Hv.
15.In synthetic fibres __________ bonding is responsible for tensile strength.
A. Nitrogen.
B. Hydrogen.
C. Oxygen.
D. Nitrogen.
16.Boiling point of HF is __________ H2O.
A. Lower than.
B. Higher than.
C. Equal to.
D. Lower than.
17.__________ is necessary for development of leaves and it tends to accumulate in leaves and bark.
A. NO2.
B. Calcium.
C. Gypsum.
D. NO2.
18.Which of the following is pale yellow to reddish yellow in color?
A. Pb2O.
B. PbO2.
C. PbO.
D. Pb2O.
19.In which of the following carbon is double bonded with itself?
A. Alkane.
B. Ether.
C. Alkene.
D. Alkane.
20.In this process, higher hydrocarbons can be cracked at lower temperature and lower pressure.
A. Thermal cracking.
B. Catalytic cracking.
C. Steam cracking.
D. Thermal cracking.
21.In this process, higher hydrocarbons can be cracked at lower temperature and lower pressure.
A. Thermal cracking.
B. Catalytic cracking.
C. Steam cracking.
D. Thermal cracking.
22.Acetic acid is called __________ acid.
A. Methanoic.
B. Propanoic.
C. Ethanoic.
D. Methanoic.
23.Na may be denoted by __________ electron configuration notation
A. 1s2 2s1.
B. [Ar] 4s1.
C. [Ne] 3s1.
D. 1s2 2s1.
24.Which is the best drying agent in desiccators?
A. KOH.
B. Gypsum.
C. CaCl2.
D. KOH.
25.100 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.
B. 4 atm.
C. 2 atm.
D. 6 atm.
26.The crystals of __________ are ionic solids.
A. Sugar.
B. Iron.
C. Diamond.
D. Sugar.
27.Which material possesses the highest pH?
A. Soft drinks.
B. Bananas.
C. Milk of magnesia.
D. Soft drinks.
28.The electron present in a particular orbit __________ energy.
A. Releases.
B. Does not radiate.
C. Absorbs.
D. Releases.
29.Al2F2SiO4 is named as
A. Gibbsite.
B. Emerald.
C. Bauxite.
D. Gibbsite.
30.Name the oxide in which N has the highest oxidation number.
A. Nitrous oxide.
B. Nitric oxide.
C. Nitrogen peroxide.
D. Nitrous oxide.
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