List of top Questions asked in BITSAT- 2014

Which of the following halogens exhibit only one oxidation state in its compounds?
Which one of the following arrangements represents the correct order of electron gain enthalpy (with negative sign) of the given atomic species?
Starch can be used as an indicator for the detection of traces of:
The isoelectric point of a colloidally dispersed material is the pH value at which:
Two substances R and S decompose in solution independently, both following first order kinetics. The rate constant of R is twice that of S. Initially 0.5 millimoles of R and 0.25 of S. The molarities of R and S will be equal at the end of time equal to:
The reduction of peroxodisulphate ion by I\(^{-}\) ion is expressed by \(\text{S}_2\text{O}_8^{2-} + 3\text{I}^- \rightarrow 2\text{SO}_4^{2-} + \text{I}_3^-\). If rate of disappearance of I\(^{-}\) is \(9/2 \times 10^{-3}\,\text{mol L}^{-1}\text{s}^{-1}\), what is the rate of formation of \(2\text{SO}_4^{2-}\) during same time?
An elemental crystal has a density of \(8570\,\text{kg m}^{-3}\). The packing efficiency is 0.68. The closest distance of approach between neighbouring atoms is \(2.86\,\text{\AA}\). What is the mass of one atom approximately?
An organic compound A (C\(_4\)H\(_9\)Cl) on reaction with Na/diethyl ether gives a hydrocarbon which on monochlorination gives only one chloro derivative. Then A is:
The correct order of increasing C–O bond length in CO, CO\(_3^{2-}\), CO\(_2\) is:
Identify the correct order of solubility of Na\(_2\)S, CuS and ZnS in aqueous medium:
When rain is accompanied by a thunderstorm, the collected rain water will have a pH value:
The compound which gives the most stable carbocation on dehydration is:
Which of the following compounds has wrong IUPAC name?
Which of the following among alkali metal is most reactive?
The ratio of oxidation states of Cl in potassium chloride to that in potassium chlorate is:
N\(_2\) and O\(_2\) are converted into mono anions N\(_2^-\) and O\(_2^-\) respectively. Which of the following statements is wrong?
The enthalpy of sublimation of aluminium is \(330\,\text{kJ mol}^{-1}\). Its I\(^\text{st}\), II\(^\text{nd}\) and III\(^\text{rd}\) ionization enthalpies are 580, 1820 and \(2740\,\text{kJ mol}^{-1}\) respectively. How much heat must be supplied in kJ to convert 13.5 g of aluminium into Al\(^{3+}\) ions and electrons at 298 K?
Which one of the following pairs is isostructural (i.e., having the same shape and hybridization)?
The valency shell of element A contains 3 electrons while the valency shell of element B contains 6 electrons. If A combines with B, the probable formula of the compound formed will be:
If the enthalpy of vaporization of water is \(18.6\,\text{kJ mol}^{-1}\), the entropy of its vaporization will be:
For a CE transistor amplifier, the audio signal voltage across the collector resistance of \(2.0\,\text{k}\Omega\) is \(2.0\,\text{V}\). Suppose the current amplification factor of the transistor is 100. What should be the value of \(R_B\) in series with \(V_{BB}\) supply of \(2.0\,\text{V}\) if the base current has to be 10 times the signal current?
A nucleus of uranium decays at rest into nuclei of thorium and helium. Then:
Let binding energy per nucleon of nucleus be denoted by \(E_{bn}\) and radius of nucleus be denoted as \(r\). If mass number of nuclei A and B are 64 and 125 respectively then:
The formation of CO and CO\(_2\) illustrates the law of:
The wave number of the limiting line in Lyman series of hydrogen is \(109678\,\text{cm}^{-1}\). The wave number of the limiting line in Balmer series of He\(^+\) would be: