19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
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 …
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
Identify the incorrect statement from the following (NEET 2022)
Magnesium burns in air to produce MgO and …X… with …Y… flame. Here, X and Y refer to
Which one of the following properties of alkali metals increases in magnitude as the atomic number reises? (AIPMT 1989)
Which compound will show the highest lattice energy? (AIPMT 1993)
Main process for the manufacture of sodium carbonate is (MP PMT 2006)
When sodium nitrate is heated above 800° C then (JCECE 2006)
Lower melting point chloride is (JCECE 2006)
Consider the following abbreviations for hydrated What is the correct order of size of these hydrated alkali ions? n n n x Li H O , y Na H O ,z K H O (J & K CET 2006)
In which of the following the hydration energy is higher than the lattice energy? (CBSE AIPMT 2007)
The alkali metals from salt-like hydride by the direct synthesis at elevated tempeature. The thermal stability of these hydrides decreases in which of the following orders? …
The low melting point of alkali is due to
The alkali metals and their salts show characteristics colour to
Equimolar solution of the following were prepared in water separately. Which one of the solutions will record the highest pH? (AIPMT 2008)
The correct order of stability for the following superoxides is (EAMCET 2008)