Question
Describe graphically the experimental method of measuring the conductivity of electrolyte solutions (ionic solution).
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What happens to most probable kinetic energy and the energy of activation with increase in temperature?
Indicate the types of isomerism exhibited by the following complexes and draw the structures for these isomers$:$
$i. k \left[ Cr \left( H _2 O \right)_2\left( C _2 O _4\right)_2\right]$
$ii. \left[ Co ( en )_3\right] Cl _3$
$iii. \left[ Co \left( NH _3\right)_5\left( NO _2\right)\left( NO _3\right)_2\right]$
$iv. \left[ Pt \left( NH _3\left( H _2 O \right) Cl _2\right.\right.$
→$i. k \left[ Cr \left( H _2 O \right)_2\left( C _2 O _4\right)_2\right]$
$ii. \left[ Co ( en )_3\right] Cl _3$
$iii. \left[ Co \left( NH _3\right)_5\left( NO _2\right)\left( NO _3\right)_2\right]$
$iv. \left[ Pt \left( NH _3\left( H _2 O \right) Cl _2\right.\right.$
- The acid strength of alcohols decreases in the order
- Phenol is more easily nitrated than benzene.
Graphically explain the effect of temperature on the rate constant of reaction. How can this temperature effect on rate constant be represented quantitatively?
Attempt any five of the following:
(a) Aldopentoses named ribose and 2-deoxyribose are found in nucleic acids. What is their relative configuration?
(b) What are the three components of nucleic acids?
(c) Name the sugar present in milk. How many monosaccharide units are present in it? What are such oligosaccharides called?
(d) Is nucleotide and nucleoside the same? What are their roles?
(e) Why cannot vitamin C be stored in our body?
(f) During curdling of milk, what happens to sugar present in it?
(g) Account for the following:
a. There are 5-OH groups in glucose.
b. Glucose is a reducing sugar
(a) Aldopentoses named ribose and 2-deoxyribose are found in nucleic acids. What is their relative configuration?
(b) What are the three components of nucleic acids?
(c) Name the sugar present in milk. How many monosaccharide units are present in it? What are such oligosaccharides called?
(d) Is nucleotide and nucleoside the same? What are their roles?
(e) Why cannot vitamin C be stored in our body?
(f) During curdling of milk, what happens to sugar present in it?
(g) Account for the following:
a. There are 5-OH groups in glucose.
b. Glucose is a reducing sugar
The rate constant for the first order decomposition of $H_2O_2$ is given by the following equation:
log $k = 14.34 – 1.25 \times 10^4K/T$
Calculate $E_a$ for this reaction and at what temperature will its half-period be $256$ minutes?
→log $k = 14.34 – 1.25 \times 10^4K/T$
Calculate $E_a$ for this reaction and at what temperature will its half-period be $256$ minutes?
Match the items of Column I and Column II.
| Column I | Column II | ||
| (i) | Mathematical expression for rate of reaction. | (a) | Rate constant. |
| (ii) | Rate of reaction for zero order reaction is equal to. | (b) | Rate law. |
| (iii) | Units of rate constant for zero order reaction is same as that of. | (c) | Oder of slowest step. |
| (iv) | Order of a complex reaction is determined by. | (d) | Rate of a reaction. |
Match the formulas of oxides given in Column I with the type of oxide given in Column II and mark the correct option.
→| Column I | Column II | ||
| $(A)$ | $Pb_3O_4$ | $(1)$ | Neutral oxide |
| $(B)$ | $N_2O$ | $(2)$ | Acidic oxide |
| $(C)$ | $Mn_2O_7$ | $(3)$ | Basic oxide |
| $(D)$ | $Bi_2O_3$ | $(4)$ | Mixed oxide |
- $A (1) B (2) C (3) D (4)$
- $A (4) B (1) C (2) D (3)$
- $A (3) B (2) C (4) D (1)$
- $A (4) B (3) C (1) D (2)$
Discus in detail the following $C - H$ bond cleavage reactions of ether :
(i) Peroxide formation
(ii) Halogenation
→(i) Peroxide formation
(ii) Halogenation
Explain the effect of substitutents on the basic strength of aromatic amines.