Question 1 :
A student performs a titration with different burettes and finds titre values of 25.2 mL, 25.25 mL, and 25.0mL. The number of significant figures in the average titre value is
Question 2 :
The number of moles of solute present in 2.0 litre of 0.5 M NaOH solution is:
Question 3 :
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 5 :
The formula which represents the simple ratio of atoms in a compound is called:
Question 6 :
Classify which of the following pair is a compound and a mixture?
Question 7 :
The molarity of a solution is 0.2 M when 18 g of glucose is dissolved in 500 ml of water.
Question 8 :
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 9 :
0.52 g of dibasic acid required 100 mL of 0.1 <img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/NEET/5ea7fccdfdd8313cc8726705"> NaOH for complete neutralization. The equivalent weight of acid is:
Question 11 :
If $0.01$ mole of solute is present in $500\ ml $ of solution, its molarity is:
Question 12 :
A 1.50 g sample of an ore containing silver was dissolved,and all the $ Ag^{+} $ was converted to 0.125 g $ Ag_{2}S $. What was the percentage of silver in the ore?
Question 13 :
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 15 :
A mixture of ethanol and water contains $54\%$ water by mass. Calculate the mole fraction of ethanol in this solution.
Question 16 :
1 mole of the substance present is 1 L of solution is known as:
Question 17 :
16.0 g of NaOH is present in 100 ml of an aqueous solution. Its density is 1.06 g/ml. Mole fraction of the solute is approximately:
Question 18 :
The molarity of a NaOH solution by dissolving $4\;g$ of it on $250\;mL$ water is:
Question 19 :
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 20 :
A solution of $KMnO_4$ containing $3$ g/L is titrated with a solution of $H_2O_2$ containing $2$ g/L.<div>The volume (in ml) of $KMnO_4$ required to react with $20$ mL $H_2O_2$ solution is: (as nearest integer) </div>
Question 21 :
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 :
Question 22 :
The weight percent of source (formula weight  = 342 $g\ mol^{-1} $ ) in an aqueous solution is 3.42. The density of the solution is 1 $g\ mL^{-1} $ , the concentration of sucrose in the solution in $ mol \ L^{-1} $ is: 
Question 23 :
If 25 mL of a $H_2SO_4$ solution reacts completely with 1.06 g of pure $Na_2CO_3$, what is the normality of this acid solution?