19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
On combustion in excess of air lithium forms mainly …X… sodium forms …Y… while potassium forms …Z…Here, X, Y and Z refer to
The alkali metal oxides dissolve in water to produce
Solvay process is used in the preparation of
Which of the following statement (s) is/are correct? I. Sodium and potassium are found on same sides of cell. II. Sodium and potassium are present on opposite side of cell. III. Sodium is found in blood plasma and pot…
Anomalous behavior of lithium is due to I. exceptionally small size of its atom II. High polarizing power. III. High Charge Radius ratio. Choose the correct option
Choose the correct statements (s) regarding lithium and alkali metals I. Lithium is much harder. Its m.p and b.p are higher than other alkali metals. II. Lithium is highly reactive and strongest reducing agent in comp…
Match the Column I and Column II and choose the correct option from the codes give below. Column I Column II A. Potassium 1. Soft soap B. Potassium chloride 2. Fertilizer C. Potassium hydroxide 3. Photoelectric cells …
Alkali metal nitrates decomposes to produce …X… while lithium nitrate on heating decomposes to corresponding …Y… Here, Y and Y refer fo
Alkali metals dissolve in liquid ammonia and produces
When sodium is dissolved in liquid ammonia is solution of deep blue colour is obtained. The colour of solution is due to
…A… is used in devising photoelectric cells. Here, A refer to
Similarity between lithium and magnesium is particularly stricken and arises because of their
Choose the correct option from the codes given below regarding elements and their characteristics colour given in Column I and II of the following table. Column I Column II A. Li 1. Crimson red B. Na 2. Yellow C. K 3.…
Choose the correct statements(s) among the following. I. Alkali metal is highly reactive. II. Alkali metal has lowest ionization enthalpy among their respective period. III. Ionization energy of alkali metals increase…
Which of the following metal salt is mostly hydrated?
The oxidation state of K in KO₂ is …A… and the bonding type is …B… Here, A and B refer to
…A… has maximum degree of hydration. Here, A refers to
Lithium halides are somewhat …A… It is because …B… value of polarization capability of lithium ion. Here, A and B refer to
Choose the incorrect statement out of the following
What approximate amount of ATP is used by a resting human in 24 hours?
Which of the following is not an alkaline earth metal?
Alkali metals readily …X… electron to give monovalent M+ ion. Here, X refer to
Ground state valence shell electronic configuration of barium is
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 correctly order regarding hydration enthalpies of alkaline earth metals?