AIPMT 2015 Cancelled Paper

The reaction,

is called

An organic compound 'X' having molecular formula C5H10O yields phenylhydrazone and gives negative response to the iodoform test and Tollens' test. It produces n-pentane on reduction. 'X' could be

Treatment of cyclopentanone

with methyl lithium gives which of the following species ?

The correct bond order in the following species is

Which of the following pairs of ions are isoelectronic and isostructural ?

Which of the following species contains equal number of \(\sigma\)- and \(\pi\)-bonds ?

Maximum bond angle at nitrogen is present in which of the following ?

Which of the following options represents the correct bond order ?

Which of the following statements is correct for a reversible process in a state of equilibrium?

If the value of equilibrium constant for a particular reaction is 1.6 \(\times\) 1012, then at equilibrium the system will contain

When initial concentration of a reactant is doubled in a reaction, its half-life period is not affected. The order of the reaction is

The activation energy of a reaction can be determined from the slope of which of the following graphs?

Bithional is generally added to the soaps as an additive to function as a/n

Which of these statements about [Co(CN)6]3\(-\) is true?

Cobalt (III) chloride forms several octahedral complexes with ammonia. Which of the following will not give test for chloride ions with silver nitrate at 25oC?

Which of the following processes does not involve oxidation of iron?

Magnetic moment 2.84 B.M. is given by (At. nos. Ni = 28, Ti = 22, Cr = 24, Co = 27)

Because of lanthanoid contraction, which of the following pairs of elements have nearly same atomic radii? (Numbers in the parenthesis are atomic numbers)

A device that converts energy of combustion of fuels like hydrogen and methane, directly into electrical energy is known as

The reaction of C6H5CH \(=\) CHCH3 with HBr produces

Given :

The enthalpy of hydrogenation of these compounds will be in the order as

A single compound of the structure,

is obtainable from ozonolysis of which of the following cyclic compounds?

The Ksp of Ag2CrO4,  AgCl,  AgBr  and Agl  are respectively, 1.1 \(\times\) 10\(-\)12, 1.8 \(\times\) 10\(-\)10, 5.0 \(\times\) 10\(-\)13, 8.3 \(\times\) 10\(-\)17. Which one of the following salts will precipitate last if AgN...

The electrolytic reduction of nitrobenzene in strongly acidic medium produces

Nitrogen dioxide and sulphur dioxide have some properties in common . Which property is shown by one of these compounds , but not by the other?

The species Ar, K+ and Ca2+ contain the same number of electrons. In which order do their radii increase ?

Biodegradable polymer which can be produced from glycine and aminocaproic acid is

''Metals are usually not found as nitrates in their ores.'' Out of the following two (I and II) reasons which is/are true for the above observation?
I.  Metal nitrates are highly unstable.
II.  Metal nitrates are highly soluble in water.

Solubility of the alkaline earth metal sulphates in water decreases in the sequence

The function of ''Sodium pump'' is a biological process operating in each and every cell of all animals. Which of the following biologically important ions is also a constituent of this pump?

A given metal crystallises out with a cubic structure having edge length of 361 pm. If there are four metal atoms in one unit cell, what is the radius of one atom?

The boiling point of 0.2 mol kg\(-\)1 solution of X in water is greater than equimolal solution of Y in water. Which one of the following statements is true in this case?

Which one of the following electrolytes has the same value of van't Hoff factor (i) as that of Al2(SO4)3 (if all are 100% ionised)?

Which of them is not equal to zero for an ideal solution?

A mixture of gases contains H2 and O2 gases in the ratio of 1 : 4 (w/w). What is the molar ratio of the two gases in the mixture ?

The total number of \(\pi\)-bond electrons in the following structure is

In which of the following compounds, the C\(-\)Cl bond ionisation shall give most stable carbonium ion?

Given :

Which of the given compounds can exhibit tautomerism?

Which of the following is the most correct electron displacement for a nucleophilic reaction to take place?

The enolic form of ethyl accetoacetate as shown below has

Consider the following compounds :

Hyperconjunction occurs in

In Duma's method for estimation of nitrogen, 0.25 g of an organic compound gave 40 mL of nitrogen collected at 300 K temperature and 725 mm pressure. If the aqueous tension at 300 K is 25 mm, the percentage of nitrogen in the compound is

The angular momentum of electron in 'd' orbital is equal to

The number of d-electrons in Fe2+ (Z = 26) is not equal to the number of electrons in which one of the following ?

Which property of colloidal solution is independent of charge on the colloidal particles?