Question 2 :
Which one of the following set of units represents the smallest and largest amount of energy respectively?
Question 3 :
The weight of ${ H }_{ 2 }{ C }_{ 2 }{ O }_{ 4 }.2{ H }_{ 2 }O$ required to prepare 500 ml of 0.2 N solution is:
Question 5 :
The ratio of mole fraction of a solute and a solvent in a binary solution is:
Question 6 :
The number of moles of solute present in 2.0 litre of 0.5 M NaOH solution is:
Question 7 :
<b></b>Calculate the volume in 10 millimoles of solute present in 0.08 M solution.
Question 8 :
If $0.01$ mole of solute is present in $500\ ml $ of solution, its molarity is:
Question 9 :
If true enter $1$, else enter $0$.<br/>A decinormal solution is $\dfrac{1}{10}\ N$.
Question 10 : Number of mole of 1 <img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/NEET/5ea7fe38fdd8313cc8726aac"> gas at NTP are:
Question 11 :
Volume of 0.1M ${ H }_{ 2 }{ SO }_{ 4 }$ is required to neutralise 50ml of 0.2M NaOH solution is:
Question 12 :
In the thermal decomposition of $C_{2}H_{5}Br$ to $C_{2}H_{4}$ and $HBr$, the pressure changed from an initial value of $200\ mmHg$ to $390\ mmHg$ at the end of the reaction. What fraction remained unchanged when the pressure of the mixture was $300\ mmHg$?
Question 14 :
10.6 g of a substance of molecular weight 106 was dissolved in 100 ml. 10 ml of this solution was pipetted out into a 1000 ml flask and made up to the mark with distilled water. The molarity of the resulting solution is:<br/>
Question 15 :
Concentrated sulphuric acid has density of 1.9 g/mL and $99\%$ $H_2SO_4$ by mass. Calculate the molarity of the acid.
Question 16 :
______ of a solution varies to a small extent with variation in experimental conditions.<br/>
Question 17 :
What is the molarity of $H_{2}SO_{4}$ solution present initially in the container?
Question 18 :
A gas mixture of $3$ liters of propane and butane on complete combustion at $25^{o}C$ produced $10$ liters of $CO_{2}$ initial composition of the propane & butane in the gas mixture is:<br/>
Question 19 :
$0.5\ faraday$ of electricity was required to deposit all the copper in $500\ mL$ of a copper sulphate solution. What is the normality of the copper sulphate solution?
Question 20 :
A current of $4.0A$ is passed for 5 hours through $1L$ of $2M$ solution of nickel nitrate using two nickel electrodes. The molarity of the solution at the end of the electrolysis will be:
Question 21 :
A $15$ mL sample of $0.20\ M\ MgCl_2$ is added to $45$ mL of $0.40\ M\ AlCl_3$, what is the molarity of $Cl^{-}$ions in the final solution?
Question 23 :
Potassium permanganate acts as an oxidising agent in acidic, alkaline as well as neutral media. Which among the following statements is incorrect?
Question 24 :
$1$ mole $N_{2}$ and $4$ mole $H_{2}$ are allowed to react in a vessel and after reaction $H_{2}O$ is added to the vessel. Aqueous solution required $1$ mole $HCl$. Mole fraction of $H_{2}$ in the gaseous mixture after the reaction is:
Question 25 :
A 3.4 g sample of H$_2$O$_2$ solution containing $x\%$ H$_2$O$_2$ by mass requires x ml of a KMnO$_4$ solution for complete oxidation under acidic condition. The molarity of KMnO$_4$ solution is :
Question 30 :
As a submarine descends into the deep ocean, the pressure it must withstand increase. At an altitude of $- 700$ meters, the pressure is $50$ atm (atmosphere), and at altitude of $- 900$ meters, the pressure is $70$ atm. For every $10$ meters the submarine descends, the pressure it faces increase by $n$, where $n$ is a constant. What is the value of $n$?
Question 31 :
The weakest interparticle forces are found in which of the following?
Question 34 :
Pressure remaining constant, the volume of a fixed mass of a gas is directly proportional to its absolute temperature. This law is popularly known as :
Question 35 : <div>Write 'true' or 'false' against the following statement.    </div><div>Earthquake is a desirable change.<br/></div>
Question 36 :
At ${27}^{o}C$, $1$ atm pressure, density of a gas is $d$. AT constant $P$ at what $T$ its density is $0.75d$?
Question 38 :
Assertion: Volumes of non-reacting gases are always additive.
Reason: Gases do not have their own volume.
Question 39 :
Assertion: Excluded volume or co-volume equals to $(V-nb)$ for n moles.
Reason: Co-volume depends on the effective size of gas molecules.
Question 41 :
Which one of the following statements is not correct about the three states of matter i.e. solid, liquid and gaseous?<br/>
Question 42 :
Arrange the following in the increasing order of 'forces of attraction':
Question 43 :
A volume of $190.0$ml of $N_2$ was collected in a jar over water at some temperature, water level inside and outside the jar standing at the same height. If a barometer reads $740$ mm Hg and aqueous tension at the temperature of the experiment is $20$ mm Hg, the volume of the gas at $1$ atm pressure and at the same temperature would be?
Question 44 :
At what centigrade temperature will a given volume of a gas at $0^{\circ}$C becomes double if pressure remains constant?
Question 45 : Assertion: Gases do not have free surfaces.
Reason: Molecules of a gas move randomly in all directions.<br/><div>Choose the correct option.</div>
Question 46 :
The relative strength of interionic/ intermolecular forces in decreasing order is :
Question 47 :
When $2$ g of gas A is introduced into an evacuated flask kept at $25^oC$, the pressure was found to be $1$ atmosphere. If $3$ g of another gas B is then added to the same flask, the pressure becomes $1.5$ atm. Assuming ideal behaviour, the ratio of molecular weights $(M_B:M_A)$ is :
Question 48 :
In the equation of state of an ideal gas $PV = nRT$, the value of universal gas constant would depend only on:
Question 50 :
Two liters Duma's bulb contains nitrogen gas at $0.5 atm.$ On adding $0.01\ mol$ of $O_2$ gas it is necessary to cool bulb to a temperature $10^oC$ to maintain the same pressure. The temperature( in Celsius) of Duma's bulb is:
