19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
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)
Along the group, size and ionization enthalpy of the group II elements(s) … and … respectively.
The alkaline earth metals have smaller size than those of corresponding alkali metals, this is due to
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
Nature of bonding present in compounds of alkaline earth metals are
Ground state valence shell electronic configuration of barium is
Which of the following is not an alkaline earth metal?
Beryllium has …A… Property from rest of alkaline earth metals and show diagonal relationship with …B… Here, A and B refer to
What approximate amount of ATP is used by a resting human in 24 hours?
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 …
Which of the following ion is most abundant within cell fluid?
Sodium ions found primarily in which part of human body?
Crude…A… Generally obtained by crystallization of brine solution. Here, A refers to
Sea water contain…by mass of the salt (NaCl)
Above 373K, the monohydrate sodium hydrogen carbonate becomes completely anhydrous and called as
Which of the following exist as decahydrate?
Which of the following is known molecular formula of washing soda?
Potassium is not prepared by Solvay process because …X… is too soluble to be precipitated by addition of ammonium hydrogen carbonate. Here, X refer to
What will be the product when ammonium chloride is treated with calcium hydroxide?
Solvay process is used in the preparation of