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What are enzyme inhibitors? Classify them on the basis of their mode of attachments on the active site of enzymes. With the help of diagrams explain how do inhibitors inhibit the enzymatic activity.
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Arrange the following in the increasing order of their property indicated:
Acetaldehyde, Acetone, Methyl tert butyl ketone (reactivity towards NH2OH).
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Write the formula and hybridization of the following compound:
tris(ethane-1, 2–diamine) cobalt(III) sulphate
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Write the IUPAC name for the following organic compound:
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What is synthetic polymer? Give two examples of synthetic polymers.
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Classify the following compound as a primary, secondary and tertiary halide.
1-Bromobut-2-ene
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Classify the following compound as a primary, secondary and tertiary halide.
4-Bromopent-2-ene
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Account for the following:
Glucose is a reducing sugar
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Write the reaction and IUPAC name of the product formed when 2-Methylpropanal (isobutyraldehyde) is treated with ethyl magnesium bromide followed by hydrolysis.
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Why are haloalkanes more reactive towards nucleophilic substitution reactions than haloarenes and vinylic halides?
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Write the IUPAC name of the following complex:
K2[PdCl4]
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Complete the following:
\[\ce{CH3CN ->[1. AlH(i - Bu)2][2. H2O] 'A' ->[H2N-OH][H^+] 'B'}\]
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Write IUPAC name of the following compound:
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Read the passage given below and answer the questions that follow:
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Oxidation-reduction reactions are commonly known as redox reactions. They involve transfer of electrons from one species to another. In a spontaneous reaction, energy is released which can be used to do useful work. The reaction is split into two half-reactions. Two different containers are used and a wire is used to drive the electrons from one side to the other and a Voltaic/Galvanic cell is created. It is an electrochemical cell that uses spontaneous redox reactions to generate electricity. A salt bridge also connects to the half-cells. The reading of the voltmeter gives the cell voltage or cell potential or electromotive force. If \[\ce{E^0_{cell}}\] is positive the reaction is spontaneous and if it is negative the reaction is non-spontaneous and is referred to as electrolytic cell. Electrolysis refers to the decomposition of a substance by an electric current. One mole of electric charge when passed through a cell will discharge half a mole of a divalent metal ion such as Cu2+. This was first formulated by Faraday in the form of laws of electrolysis.
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- Is silver plate the anode or cathode? (1)
- What will happen if the salt bridge is removed? (1)
- When does electrochemical cell behaves like an electrolytic cell? (1)
- (i) What will happen to the concentration of Zn2+ and Ag+ when Ecell = 0. (1)
(ii) Why does conductivity of a solution decreases with dilution? (1)
OR
The molar conductivity of a 1.5 M solution of an electrolyte is found to be 138.9 S cm2mol-1. Calculate the conductivity of this solution. (2)
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Write the IUPAC name of the following complex:
[Pt(NH3)6]Cl4
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Using IUPAC norms, write the formula for the following:
Pentaamminenitrito-N-Cobalt (III)
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Using IUPAC norms write the formula for the following:
Tetrahydroxidozincate (II)
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Differentiate between the following:
Adsorption and Absorption
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The following questions are case-based questions. Read the passage carefully and answer the questions that follow:
| Carbohydrates are optically active polyhydroxy aldehydes and ketones. They are also called saccharides. All those carbohydrates which reduce Fehling's solution and Tollen's reagent are referred to as reducing sugars. Glucose, the most important source of energy for mammals, is obtained by the hydrolysis of starch. Vitamins are accessory food factors required in the diet. Proteins are the polymers of α-amino acids and perform various structural and dynamic functions in the organisms. Deficiency of vitamins leads to many diseases. |
Answer the following:
(a) The penta-acetate of glucose does not react with Hydroxylamine. What does it indicate? (1)
(b) Why cannot vitamin C be stored in our body? (1)
(c) Define the following as related to proteins: (2)
- Peptide linkage
- Denaturation
OR
(c) Define the following as related to carbohydrates: (2)
- Anomers
- Glycosidic linkage
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Which of the following belongs to the class of vinyl halides?
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