19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Low solubility of LiF in water is due to …A… Here, A refer to
The correct trend of melting point and boiling point of alkali metal halides
Choose the correct statement/statement out of the following (a) f H always became less negative on moving top to bottom for alkali halides (b) f H always becomes less negative from fluoride to iodide for alkali me…
Which of the following statement (s) is/are correct regarding alkali metal halides? I. They possess high melting point and are crystalline in nature. II. They are prepared by reaction of appropriate oxides with aque…
The alkali metal oxides dissolve in water to produce
Sodium …X… is widely used as a/an …Y…. Here, X and Y refer to
On combustion in excess of air lithium forms mainly …X… sodium forms …Y… while potassium forms …Z…Here, X, Y and Z refer to
Choose the incorrect statement out of the following
Lithium and magnesium oxides and hydroxides are …X… soluble in water. Here, X refers to
Similarity between lithium and magnesium is particularly stricken and arises because of their
Alkali metal nitrates decomposes to produce …X… while lithium nitrate on heating decomposes to corresponding …Y… Here, Y and Y refer fo
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 com…
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
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 …
…A… is used in devising photoelectric cells. Here, A refer to
…A…is used in the manufacturing of soft soap. Here, A refer to
Which of the following metal is used to form useful alloys?
When sodium is dissolved in liquid ammonia is solution of deep blue colour is obtained. The colour of solution is due to
Alkali metals dissolve in liquid ammonia and produces
Which of the following is correct metals regarding least and most powerful reducing agent among alkali metals?
Which of the following metal has high value of polarization?
Lithium halides are somewhat …A… It is because …B… value of polarization capability of lithium ion. Here, A and B refer to
The nature of bonding in hydride of alkali metal is
Alkali metal reacts with water vigorously to form hydroxides and dihydrogen. Which of the following alkali metals reacts with water least vigorously?
The oxidation state of K in KO2 is …A… and the bonding type is …B… Here, A and B refer to