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Home » Medical Papers » UHS MDCAT » Aptitude Test - 18
1.Energy required to remove an electron from the outermost shell of its isolated gaseous atom in the ground state is
A. Electron affinity
B. Lattice energy
C. Ionization energy
D. Electron affinity
2.The compound with an atom, which has unshared pair of electrons is called:
A. Nucleophile
B. Electrophile
C. Protophile
D. Nucleophile
3.1-chloropropane and 2-chlorpropane are isomers of each other, the type of isomerism in these two is called:
A. Cis-trans isomerism
B. Chain isomerism
C. Position isomerism
D. Cis-trans isomerism
4.Which of the following carbonates of alkali metals is not stable towards heat and is decomposed on heating to its oxide along with liberation of CO2?
A. Li2CO3
B. Mg2CO3
C. K2CO3
D. Li2CO3
5.Benzene in the presence of AlCl3 produces acetophenone when reacts with:
A. Acetyl chloride
B. Acetic acid
C. Ethyl benzene
D. Acetyl chloride
6.The presence of calcium is essential for the normal development of plants. An adequate supply of calcium appears to stimulate the development of which part of the plants?
A. Leaves
B. Fruits
C. Root hairs
D. Leaves
7.Which of the following sulphates is not soluble in water?
A. Sodium Sulphate
B. Barium Sulphate
C. Potassium Sulphate
D. Sodium Sulphate
8.The trend in the densities of elements of Group III-A of the Periodic Table is
A. A gradual increase
B. A gradual decrease
C. First decrease then increase
D. A gradual increase
9.White lead has one of the following properties
A. Acidic
B. Crystalline
C. Amorphous
D. Acidic
10.The strongest acid among the following is
A. HF
B. HI
C. HCl
D. HF
11.The noble gas which is used in radiotherapy of cancer is
A. Radon
B. Xenon
C. Krypton
D. Radon
12.The substitution of a '-H' by '-NO2' group in benzene is called:
A. Nitration
B. Ammunolusis
C. Sulphonation
D. Nitration
13.When purely alcoholic solution of sodium/potassium hydroxide and halogenoalkanes are reacted an alkene is formed, what is the mechanism of reaction?
A. Elimination
B. Dehydration
C. Debromination
D. Elimination
14.The organic compound carbon tetrachloride is used as:
A. Lubricant
B. Solvent
C. Oxidant
D. Lubricant
15.An alcohol is converted to an aldehyde with same number of carbon atoms as that of alcohol in the presence of K2Cr2O7/H2SO4 the alcohol is: A) CH3Cl(CH)2OH
A. CH3Cl(CH)2OH
B. CH3CH2CH2OH
C. (CH3)3COH
D. CH3Cl(CH)2OH
16.Which enzyme is involved in the fermentation of glucose:
A. Zymase
B. Invertase
C. Urease
D. Zymase
17.Relative acidic strength of alcohol, phenol, water and carboxylic acid is:
A. Carboxylic acid > Alcohol > Phenol > Water
B. Carboxylic acid > Phenol > Water > Alcohol
C. Phenol > Carboxylic acid > Alcohol > Water
D. Carboxylic acid > Alcohol > Phenol > Water
18.CH3COOH + PCl5....................... ? The products of the above reaction are:
A. CH3COl + POCl3 + HCl
B. CH3COl + POCl2 + HCl
C. CH3Cl + POCl3 + HCl
D. CH3COl + POCl3 + HCl
19.CH3CN + HCl ..........................A + B (in the presence of water) In the above reaction, A and B are:
A. Acetic acid and acid amide
B. Acetic acid and ammonia
C. Acetic acid and methyl chloride
D. Acetic acid and acid amide
20.Consider the following reaction: CH3COOH + Mg (metal) ? What product will form?
A. Magnesium formate
B. Magnesium acetate
C. Magnesium ion
D. Magnesium formate
21.The ―NH―CO is called:
A. Amide group
B. Amino group
C. Protein linkage
D. Amide group
22.Which of the following has an amino R-group?
A. Lysine
B. Proline
C. Valine
D. Lysine
23.At intermediate value of pH, amino acids form Zwitter ions containing:
A. ―N+H3 and COO―
B. ―NH3 and COO―
C. ―N+H3 and COOH
D. ―N+H3 and COO―
24.When hexane dioic acid is heated with hexamethylene diamine, the compound formed is:
A. Polypeptide
B. Addition polymer
C. Ester
D. Polypeptide
25.A polymer in which the number of amino acid residue is greater than 100 or molecular mass is greater than 1000, is known as:
A. Protein
B. Polypeptide
C. Dipeptide
D. Protein
26.Glucose and fructose are common examples of:
A. Pentoses
B. Hexoses
C. Heptoses
D. Pentoses
27.The reaction between fats and caustic soda is called:
A. Hydrogenolysis
B. Fermentation
C. Carboxylation
D. Hydrogenolysis
28.Macromolecules are described as large molecules built up from small repeating units known as:
A. Monomers
B. Isomers
C. Metameres
D. Monomers
29.Polyvinyl chloride is an example of:
A. Addition polymer
B. Condensation polymer
C. Biopolymer
D. Addition polymer
30.Terylene, a polyester is an example of:
A. Biopolymer
B. Lipids
C. Condensation polymer
D. Biopolymer
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