19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Among the following alkaline earth metal halides, one which is covalent and soluble in organic solvents is: (NEET 2021)
The structure of beryllium chloride in solid state and vapour phase, are: (NEET 2021)
HCl was passed through a solution of CaCl2, MgCl2 and NaCl. Which of the following compound(s) crystallise(s)? (NEET 2020)
The following metal ion activates many enzymes, participates in the oxidation of glucose to produce ATP and with Na, is responsible for the transmission of nerve signals (NEET 2020)
Which of the following is an amphoteric hydroxide? (NEET 2019)
Crude sodium chloride obtained by crystallisation of brine solution does not contain (Odisha NEET 2019)
Which of the following alkaline earth metal sulphates is least soluble in water? (Haryana PET 2010)
Molecular formula of Glauber’s salt is (JCECE 2010)
Epsom salt is (RPMT 2010)
Gypsum on heating to 390 K gives. (RPMT 2010)
The ionic mobility of alkali metal ions is aqueous solution is maximum for (RPMT 2010)
Among the alkali metals, cesium is the most reactive because (RPMT 2010)
The yellow coloured flame is of (MP PMT 2010)
Which of the metal carbonates is decomposed on heating? (MP PMT 2010)
Washing Soda is (MP PMT 2010)
The hightly reactive alkali metals are kept in (CPMT 2010)
In aqueous solution, the most stable sulphate is (CPMT 2010)
The solubilities of carbonates decrease down the magnesium group due to a decrease in (RPMT 2008)
Which of the following on thermal decomposition yields a basic as well as an acidic oxide? (Kerala CEE 2008)
The correct order of stability for the following superoxides is (EAMCET 2008)
Equimolar solution of the following were prepared in water separately. Which one of the solutions will record the highest pH? (AIPMT 2008)
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? …
In which of the following the hydration energy is higher than the lattice energy? (CBSE AIPMT 2007)
Powder of beryllium burns in air frequently to produce
Beryllium and Magnesium are kinetically inert to oxygen and water because of formation of …X.. on their surface. Here, X refer to