19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Correct order of stability of group IIA metal carbonates is (OJEE 2009)
Among the following, the least thermally stable is (J & K CET 2009)
Which of the following will give H2 gas with dilute HNO3? (CPMT 2009)
Which physical property in the alkali metal group increases with atomic number? (AMU 2009)
In the case of alkali metals, the covalent character decreases in the order, (CBSE AIPMT 2009)
Which of the following oxides is not expected to react with sodium hydroxide? (CBSE AIPMT 2009)
Alkaline earth metals are …X… than that of alkali metals. Here, X refer to
Which of the following is correctly represented according to their existence? I. MgCl2 .6H2O II. NaCl. 6H2O III. KCl. 6H2O IV. CaCl2. 6H2O
Assertion (A): The compounds of alkaline earth metals are more extensively hydrated than those of alkali metal. Reason (R): This is due to low hydration energy of alkaline earth metal as compared to alkali metal.
Hydration energy of alkaline earth metal has …A… value to that of alkali metal. Here, A refer to
Which of the following is correctly order regarding hydration enthalpies of alkaline earth metals?
The first ionization enthalpy of the alkaline earth metals are …X…. that of corresponding group I metal. Here, X refers to
Along the group, size and ionization enthalpy of the group II elements(s) … and … respectively.
The alkaline earth metals have smaller size than those of corresponding alkali metals, this is due to
The atomic and ionic radii of the alkaline earth metals are …A… than those of the corresponding alkali metals in the corresponding period Here, A refers to
Which of the following is used in the preparation of cakes or pastries?
Which of the following statement is incorrect regarding use of caustic soda?
Which of the following statements(s)is/are correct regarding sodium hydroxide? I. It is white and translucent. II. It melts at 591K. III. It is non-deliquescent IV. It is soluble in water and its aqueous solution is…
Sodium chloride is prepared by the electrolysis of sodium chloride solution the electrodes used as cathode and anode are respectively.
Sodium hydroxide is commercially prepared by
Which of the following is commonly named as caustic soda?
Solubility of sodium chloride in 100 g of water at 273 K is
Which of the following is present as impurity in crude sodium chloride?
Crude…A… Generally obtained by crystallization of brine solution. Here, A refers to
Sea water contain…by mass of the salt (NaCl)