Question 2 :
The work done in which of the following process is equal to the internal energy of the system?
Question 3 :
At constant volume, pressure is directly proportional to the temperature, this law is popularly known as<span> :</span>
Question 4 :
All gases have the same number of moles in the same volume at constant temperature and pressure.<br/>
Question 6 :
The octet rule is not obeyed by which of the following molecule:
Question 7 :
The partial charge separation between the bonded atoms gives rise to ___________ in that compound.<br/>
Question 10 :
The value of effective charge on each oxygen atom is $-\frac{1}{4}$ in:
Question 11 :
If the mass of electron is doubled, the speed of electron revolving around $Li^{2+}$ nucleus will ________
Question 12 :
For a crystal of diamond, the coordination number of each carbon atom is__________
Question 14 :
In which of the following uses of graphite, the presence of Van der Waal's forces of attraction in graphite is not exploited?<br/>
Question 15 :
Arrange the following properties, as indicated, in the increasing order :<br/>$\quad Lattice\quad energy\quad of\quad BeCl_{ 2 },MgCl_{ 2 <br/><br/>},CaCl_{ 2 },SrCl_{ 2 }\\ $<br/>
Question 19 :
At $ 90^oC $ the concentration of $ H_3O^+ $ in pure water is $ 10^{-4} $ $ mol. Lit^- $. What is the value of $ K_W $ at this temperature ?
Question 20 :
In which of the following pairs, both members liberate methane gas on reaction with water?
Question 22 :
The % of Copper and Oxygen in samples of CuO obtained by different methods were found to be the same. <div><span>This proves the law of:</span><br/></div>
Question 25 :
Which of the following is a<b> </b>soil pollutant due to agricultural practice?
Question 26 :
Which term is the most specific group to which ${C}_{2}{H}_{6}$ belongs?
Question 29 :
In which of the following reactions, does a non-metal act as a reducing agent?
Question 30 :
When Carbon monoxide is passed over heated copper oxide it gives :<br/>