19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
How many hydrogen bonded water molecules are associated with CuSO4.5H2O?
Liquid water is denser than ice due to
The HOH angle in water molecule is about
What is meant by demineralized water ?
Assertion (A): The crystalline form of water is ice. Reason (R): At atmospheric pressure ice crystallizes in the hexagonal form but at very low temperature it condenses to the cubic form.
Which one of the following statements about water is FALSE?
From group 6 only one metal forms hydride. This metal is
What is the reaction given below called? aq aq H O H O H O OH l l
In complex hydrides, hydride ions act as ligand and are coordinated to metal ions. These hydrides are good reducing agents. Which of the following hydrides is not complex hydride ?
Which gas is produced when calcium nitride (Ca3N2) is hydrolysed by water?
Given below are the elements and the type of hydrides formed by them. Mark the incorrect match.
Non-stoichiometric hydrides are produced by
Which of the following statements regarding hydrides is not correct?
On moving from left to right in a period what is the order of acidic character of hydrides?
Which of the following metals directly combine with hydrogen gas to give a hydride?
Which of the following hydrides is electron deficient?
Carbon hydride of the type, CnH2n+2 do not act as Lewis acid or Lewis base. They behave as normal covalent hydrides because
Dihydrogen forms three types of hydrides. (i) hydrides are formed by alkali metals and alkaline earth metals. (ii) hydrides are formed by non-metals and (iii) hydrides are formed by d and f-block elements at elevated …
Metal hydrides may be ionic, covalent or molecular in nature. Among LiH,NaH,KH,RbH,CsH the correct order of increasing ionic character is
On reaction with water, which of the following does not produce any hydride? (a) CaH (b) Be C (c) Mg N (d) Ca P
Earlier, it was thought that in the non-stoichiometric hydrides, hydrogen occupies interstices in the metal lattice producing distortion without any change in its type. Consequently, they were termed as ………X…….. Here,…
Ionic hydrides react with water to give
Metallic hydrides are
What is the trend of boiling points of hydrides of N, O and F?
CH ,NH ,H O and HF are the example of