Question
Explain the open chain structure of glucose.
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Match the items given in Column I and Column II.
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Column I
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Column II
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i.
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Saturated solution
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a.
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Solution having same osmotic pressure at a given temperature as that of given solution.
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ii.
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Binary solution
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b.
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A solution whose osmotic pressure is less than that of another.
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iii.
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Isotonic solution
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c.
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Solution with two components.
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iv.
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Hypotonic solution
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d.
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A solution which contains maximum amount of solute that can be dissolved in a given amount of solvent at a given temperature.
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v.
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Solid solution
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e.
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A solution whose osmotic pressure is more than that of another.
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vi
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Hypertonic solution
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f.
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A solution in solid phase.
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Explain the energy distribution curve of gaseous molecules and also discuss the effect of temperature on it.
Give the electronic configuration of the following complexes on the basis of Crystal Field Splitting theory. $\ce{[CoF_6]^{3-}, [Fe(CN)_6]^{4-}}$ and $\ce{[Cu(NH_3)_6]^{2+}}$
→- Why do transition elements show variable oxidation states?
- Name the element showing maximum number of oxidation states among the first series of transition metals form Sc (Z=21) to Zn (Z=30).
- Name the element which shows only +3 oxidation state.
- What is lanthanoid contraction? Name an important alloy which contains some of the lanthanoid metals.
Differentiate between DNA and RNA.
Define the following modes of expressing the concentration of a solution. Which of these modes are independent of temperature and why?
- w/w (mass percentage)
- V/V (volume percentage)
- w/V (mass by volume percentage)
- ppm. (parts per million)
- x (mole fraction)
- M (Molarity)
- m (Molality)
Match the items of Column $I$ and Column $II$ on the basis of data given below$:$
$\text{E}^{\ominus}_{\text{F}_2/\text{F}^-}=2.87\text{V},\text{ E}^{\ominus}_{\text{Li}^+/\text{Li}}=-3.5\text{V},\text {E}^{\ominus}_{\text{Au}^{3+}/\text{Au}}=1.4\text{V},\text{ E}^{\ominus}_{ \text{Br}_2/\text{Br}^-}=1.09\text{V}$
→$\text{E}^{\ominus}_{\text{F}_2/\text{F}^-}=2.87\text{V},\text{ E}^{\ominus}_{\text{Li}^+/\text{Li}}=-3.5\text{V},\text {E}^{\ominus}_{\text{Au}^{3+}/\text{Au}}=1.4\text{V},\text{ E}^{\ominus}_{ \text{Br}_2/\text{Br}^-}=1.09\text{V}$
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Column $I$
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Column $II$
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| $i.$ | $F_2$ | $a.$ |
Metal is the strongest reducing agent.
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| $ii.$ | $Li$ | $b.$ |
Metal ion which is the weakest oxidising agent.
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| $iii.$ | $Au^{3+}$ | $c.$ |
Non metal which is the best oxidising agent.
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| $iv.$ | $Br^-$ | $d.$ |
Unreactive metal.
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| $v.$ | $Au$ | $e.$ |
Anion that can be oxidised by $Au^{3+}$
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| $vi.$ | $Li^+$ | $f.$ |
Anion which is the weakest reducing agent.
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| $vii.$ | $F^-$ | $g.$ |
Metal ion which is an oxidising agent.
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Which forces are responsible for the stability of $\alpha-\text{helix}?$ Why is it named as $3.6_{13}$ helix?
→Attempt any five of the following:
(a) Why are polysaccharides considered non-sugars?
(b) What is meant by invert sugars?
(c) Write the name of the component of starch which is water-soluble.
(d) Write the products obtained after hydrolysis of DNA.
(e) Name the deficiency disease resulting from lack of vitamin A and E in the diet.
(f) Which vitamin is linked with anti-sterility?
(g) a. What is the difference between a nucleoside and nucleotide?
b. What products would be formed when a nucleotide from DNA containing thymine is hydrolysed?
(a) Why are polysaccharides considered non-sugars?
(b) What is meant by invert sugars?
(c) Write the name of the component of starch which is water-soluble.
(d) Write the products obtained after hydrolysis of DNA.
(e) Name the deficiency disease resulting from lack of vitamin A and E in the diet.
(f) Which vitamin is linked with anti-sterility?
(g) a. What is the difference between a nucleoside and nucleotide?
b. What products would be formed when a nucleotide from DNA containing thymine is hydrolysed?
Predict the reagents or the products in the following reaction sequence:
