Some Basic Concepts of Chemistry questions
951 published questions with worked solutions.
- An antifreeze solution is prepared from 222.6 g of ethylene glycol ( C_2H_6O_2 ) and 200 g of water. If the density of the...
- What is the molarity of solution containing 3.2 g of NaOH (molar mass 40 g mol^ -1 ) in 250 cm^3 of water? [MHTCET 2020]
- 60 g CH_3COOH dissolved in 1 dm^3 solvent, what is molality of solution? (Density = 1.25 g/cm^3 ) [MHTCET 2022]
- The molarity of urea (molar mass 60 g mol^ -1 ) solution by dissolving 15 g of urea in 500 cm^3 of water is [MHTCET 2018]
- Molarity is [MHTCET 2018]
- 5.0 g of sodium hydroxide (molar mass 40 g mol^ -1 ) is dissolved in little quantity of water and the solution is diluted upto...
- Molarity is defined as [MHTCET 2015]
- 6.02 10^ 20 molecules of urea are present in 100 mL of its solution. The concentration of solution is [MHTCET 2013]
- An aqueous solution of urea containing 18 g urea in 1500 cm^3 of the solution has a density equal to 1.052. If the molecular...
- 2.5 cm^3 of 0.2 M H_2SO_4 solution is diluted to 0.5 dm^3 . Find the normality of the diluted solution. [MHTCET 2010]
- The volume of 2 N H_2SO_4 solution is 0.1 dm^3 . The volume of its decinormal solution (in dm^3 ) will be [MHTCET 2012]
- 1 mole of conc. HCl requires x moles of dil. NaOH for neutralization and 1 mole of conc. H_2SO_4 requires y moles of same dil....
- Number of K^+ ions and mole of K^+ ions present in 1 litre of N 5 KMnO_4 acidified solution respectively are :
- The equivalent weight of SnCl_2 in the reaction, SnCl_2 + Cl_2 SnCl_4 is :
- What weight of HNO_3 is needed to convert 5 g of iodine into iodic acid according to the reaction, I_2 + HNO_3 HIO_3 + NO_2 +...
- The eq. wt. of K_2CrO_4 as an oxidising agent in acid medium is :
- For the reaction : N_2 + 3H_2 2NH_3 ; if E_1 and E_2 are equivalent masses of NH_3 and N_2 respectively, then E_1 - E_2 is :
- 1 mole of chlorine combines with a certain weight of a metal giving 111 g of its chloride. The atomic weight of the metal...
- The equivalent weight of KMnO_4 (acidic medium) is (at. wt. of K = 39; Mn = 55) :
- In the equation, SnCl_2 + 2HgCl_2 Hg_2Cl_2 + SnCl_4 . The equivalent weight of stannous chloride (molecular weight = 190) will be...
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