19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Which of the following metal has high value of polarization?
Which of the following is correct metals regarding least and most powerful reducing agent among alkali metals?
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
Which of the following metal is used to form useful alloys?
…A…is used in the manufacturing of soft soap. Here, A refer to
…A… is used in devising photoelectric cells. Here, A refer to
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 …
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
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? …
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)
Which of the following on thermal decomposition yields a basic as well as an acidic oxide? (Kerala CEE 2008)
The solubilities of carbonates decrease down the magnesium group due to a decrease in (RPMT 2008)
Which of the following oxides is not expected to react with sodium hydroxide? (CBSE AIPMT 2009)
In the case of alkali metals, the covalent character decreases in the order, (CBSE AIPMT 2009)
Which physical property in the alkali metal group increases with atomic number? (AMU 2009)