19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Property of the alkaline earth metals that increases with their atomic number
‘A’ is an important constituent of cement which is responsible for setting of cement. What is the number of water of crystallization present in ‘A’?
Choose the incorrect statement among the following.
Which one of the following has magnesium?
Hydrogen carbonate of lithium doesn’t exist in solid state due to
Which of the following statements(s) is/are incorrect regarding the s-block elements? I. Francium is highly radioactive element. II. Oxides and hydroxides of alkali metals and alkaline earth metals are not alkaline in…
‘A’ is an important constituent of cement which is responsible for setting of cement. What is the number of water of crystallization present in ‘A’?
Which one of the following has magnesium?
Property of the alkaline earth metals that increases with their atomic number
Which of the following statements(s) is/are incorrect regarding the s-block elements? I. Francium is highly radioactive element. II. Oxides and hydroxides of alkali metals and alkaline earth metals are not alkaline in…
Why lithium compound are soluble in organic solvent?
On moving top to bottom the negative value of formation …A… for fluoride of alkali metals. Here, A refer to
Which of the following metal do not form salt with ethyne?
Along the group atomic and ionic radii are …X… and along the period atomic and ionic radii are …Y… Here, X and Y refer to
The correct reason for smaller size of alkaline earth metal than that of alkali metal is that
Which of the following order is correct regarding electropositive character of alkaline earth metals?
Which of he following is/are less soluble in water? LiF, CsI, NaCl, KCl
Assertion (A): Ba, Ca and Sr produces individual characteristic colour to flame test. Reason (R): this is due to excitation of loosely held electrons from outermost orbit to excited state of orbital.
The colour of alkali metal ions in any sample can be detected by
Which of the following statement(s) is/are incorrect regarding property of alkali metals? I. Alkali metal on reaction with water produces a gas as a byproduct which burns with poping sound. II. Alkali metals dissolve …
In concentrated solution, the colour of alkali metals in liquid ammonia is
The most correct reason for colour of alkali metal ions is
The most electropositive alkali metal is
Choose the incorrect statement among the following.
Which of the following is/are correct pair(s) regarding diagonally related elements?