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1 The compound C7H8 undergoes the following reactions The product 'C' is
2
The compound A on treatment with Na gives B, and with PCl5 gives C. B and C react together to give diethyl ether. A, B and C are in the order
3
Which oxide of nitrogen is not a common pollutant introduced into the atmosphere both due to natural and human activity?
4
Which of the following oxides is most acidic in nature
5
A mixture of 2.3 g formic acid and 4.5 g oxalic acid is treated with conc. H2SO4. The evolved gaseous mixture is passed through KOH pellets. Weight (in g) of the remaining product at STP will be
6
Nitration of aniline in strong acidic medium also gives m-nitroaniline because
7
Regarding cross-linked or network polymers, which of the following statements is incorrect?
8
Which of the following compounds can form a zwitterion?
9
Identify the major products P, Q and R in the following sequence of reactions
10
In the structure of ClF3, the number of lone pair of electrons on central atom ‘Cl’ is
11
Which of the following statements is not true for halogens
12
The correct order of atomic radii in group 13 elements is
13
Considering Ellingham diagram, which of the following metals can be used to reduce alumina
14
Considering Ellingham diagram, which of the following metals can be used to reduce alumina
15
Which one of the following elements is unable to form MF63– ion
16
The correct order of N-compounds in its decreasing order of oxidation states is
17
A sample of 0.1 g of water at 100°C and normal pressure (1.013 × 105 Nm–2) requires 54 cal of heat energy to convert to steam at 100°C. If the volume of the steam produced is 167.1 cc, the change in internal energy of the sample, is