19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Which of the following is correctly order regarding hydration enthalpies of alkaline earth metals?
Group I elements are collectively known as
Correct order of stability of group IIA metal carbonates is (OJEE 2009)
Melting and boiling point of the alkaline earth metal are …X… than the corresponding alkali metal due to …Y… sizes. Here, X and Y refer to s-BLOCK
For alkali metals, which one of the following trends is incorrect? (KCET 2010)
Which one of the alkali metals forms only, the normal oxide, M2O on heating in air? (AIPMT 2012)
What approximate amount of ATP is used by a resting human in 24 hours?
Sodium ions found primarily in which part of human body?
Beryllium has …A… Property from rest of alkaline earth metals and show diagonal relationship with …B… Here, A and B refer to
Which of the following is not an alkaline earth metal?
Choose the incorrect statement out of the following
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 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…
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…
Alkali metal nitrates decomposes to produce …X… while lithium nitrate on heating decomposes to corresponding …Y… Here, Y and Y refer fo
Similarity between lithium and magnesium is particularly stricken and arises because of their
…A… is used in devising photoelectric cells. Here, A refer to
Ground state valence shell electronic configuration of barium is
Alkali metals dissolve in liquid ammonia and produces
Which of the following element(s) is used as useful electrode(s) in 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 can be detected by their respective …A… Here, A refer to
Lithium and magnesium oxides and hydroxides are …X… soluble in water. Here, X refers to
…A… has maximum degree of hydration. Here, A refers to
The low melting point of alkali is due to