Question 2 :
Classify which of the following pair is a compound and a mixture?
Question 3 :
A solution of known normality is diluted to two times. Which of the following changes during dilution?
Question 4 :
<b></b>Calculate the volume in 10 millimoles of solute present in 0.08 M solution.
Question 5 :
Which one of the following set of units represents the smallest and largest amount of energy respectively?
Question 6 :
The weight, in grams, of KCl (Mol.wt. = 74.5) in 100ml of a 0.1M KCl solution is:
Question 8 :
The ratio of mole fraction of a solute and a solvent in a binary solution is:
Question 9 :
The least count of an instrument is 0.01 cm. Taking all precautions, the most possible error in the measurement can be
Question 11 :
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 12 :
The number of mole present in 2 litre of 0.5 <img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/NEET/5ea7fcdcfdd8313cc872674e"> NaOH is:
Question 14 :
The number of moles of water in 488 g <img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/NEET/5ea7fdb5a3d2442ab829353d"> are:
Question 15 :
Approximate atomic weight of an element is 26.89 . If its equivalent weight is 8.9 , the exact atomic weight of element would be :- -
Question 16 :
Semimolar solution contains how many moles of solute in 1L of solution?
Question 17 :
Stoichiometric ratio of sodium dihydrogen orthophosphate and sodium hydrogen orthophosphate required for synthesis of <img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/NEET/5ea7fed1a3d2442ab82937d8"> is
Question 18 :
The molarity of a solution is 0.2 M when 18 g of glucose is dissolved in 500 ml of water.
Question 19 :
How many moles of sulfate ions are in $200 mL$ of a $2 M$ sodium sulfate solution?
Question 20 :
If true enter $1$, else enter $0$.<br/>A decinormal solution is $\dfrac{1}{10}\ N$.
Question 21 :
Two samples of HCl of $1.0$ M and $0.25$ M are mixed. Find volumes of these samples taken in order to prepare $0.75$ M HCl solution. Assume no water is added.<br/>(I) $20$ mL, $10$ mL (II) $100$ mL, $50$ mL (III) $40$ mL, $20$ mL (IV) $50$ mL, $25$ mL
Question 23 :
What volume of water would be needed dilute 50 ml of 3M $H_2SO_4$ to 0.75M?<br>
Question 25 :
If $30$ mL of $0.5$ M $H_2SO_4$ diluted to $500$ mL $H_2SO_4$, then what will be it's molarity?
Question 26 :
Sulphuric acid reacts with sodium hydroxide as follows <br/>$H_2SO_4$ + $2NaOH$ $\rightarrow$ $Na_2SO_4$+ $2H_2O $<br/>When 1 L of 0.1 M sulphuric acid solution is allowed to react with 1 L of 0.1 M sodium hydroxide solution, the amount of sodium sulphate formed and its molarity in the solution obtained is ?
Question 27 :
Two oleum samples $A$ and $B$ have labeling $109%$ and $118%$ respectively. $100\ g$ of $A$ is diluted to an a $1\ L$ solution and $100\ g$ of $B$ is diluted to a $1000\ mL$ solution. If both these solutions are mixed, then normality of $H_{2}SO_{4}$ (approx.) in final solution is:
Question 30 :
A mixture of $Na_2C_2O_4$ ($A$) and $KH_2C_2O_4.2H_2O$ ($B$) required equal volumes of $0.1$ M $KMnO_4$ and $0.1$ M $NaOH$ separately. Molar ratio of $A$ and $B$ in the mixture is :