The correct sequence of conductivity of the following materials at 300 K in the increasing order is
(A) Copper
(B) Graphite
(C) Germanium
(D) Silicon
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The correct IUPAC name for the following structure is:

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Lyophobic sols like those of metals (Au, Ag, etc) are unstable and are easily precipitated by addition of electrolytes. However, it is observed that the addition of certain lyophilic colloids like gums, soaps, gelatine, etc. to lyophobic colloids (like a metal sol) render lyophobic colloids difficult to coagulate by the addition of electrolytes. The process is known as 'protection' and the lyophilic colloids are termed as Protective colloids. It is believed that the protective action of the lyophilic colloids is due to the covering up of the particles of the lyophobic colloid by those of the lyophilic colloid.
Evidently, smaller the gold number of a protective colloid, the greater is its protective action. In which of the following sols, the colloidal particles will move towards the cathode during electrophoresis?

If we plot graph for first order reaction involving reactant R, then it will be a straight line if plotted for :

Which of the following hormone is responsible for the development of secondary female characteristic and participate in control of menstrual cycle?

Which statement is correct for solutions?

Match List I with List II

LIST - I	LIST - II
A. \(K_4[Fe(CN)_6]\)	I. 3
B. \(K_2SO_4\)	II. 0.5
C. \(CH_3COOH\ \text{ in benzene }\)	III. 5
D. KCl	IV. 2

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Which of the following statements are correct about the "Central Limit Theorem"?
(A) The sampling distribution of the sample mean approaches the normal distribution as the sample size gets larger.
(B) A sample size of 30 or more is considered to be sufficient to hold the "Central Limit Theorem".
(C) As the sample size becomes larger, the prediction of characteristics of the population becomes more accurate.
(D) The sampling distribution of the sample mean approaches bell shaped curveas the sample size gets larger.
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An asset costing C is expected to have a useful life of 5 years. If the scrap value of the asset is 3,000 and the annual depreciation charge is 2,400, then the value of C is :

Which layer of microsporangium provides nutrition to the developing pollen grains?

Which cell is rechargeable?

A metal wire under constant potential difference, when heated, shows that the drift velocity of the electron :

The carbohydrate used as storage molecule in plants is