19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Which of the following is correctly represented according to their existence? I. MgCl2 .6H2O II. NaCl. 6H2O III. KCl. 6H2O IV. CaCl2. 6H2O
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
Which of the following is correctly order regarding hydration enthalpies of alkaline earth metals?
The first ionization enthalpy of the alkaline earth metals are …X…. that of corresponding group I metal. Here, X refers to
Hydration energy of alkaline earth metal has …A… value to that of alkali metal. Here, A refer to
Assertion (A): The compounds of alkaline earth metals are more extensively hydrated than those of alkali metal. Reason (R): This is due to low hydration energy of alkaline earth metal as compared to alkali metal.
Match the Column I and Column II according to element and their characteristics colours, appears in flame test and select the correct option from the codes given below. Column I Column II A. Ca 1. Apples green B. Sr 2…
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
When sodium nitrate is heated above 800° C then (JCECE 2006)
Beryllium and magnesium do not impart any colour to the flame test. The reason is that
Along the group, size and ionization enthalpy of the group II elements(s) … and … respectively.
The structure of beryllium chloride in solid state and vapour phase, are: (NEET 2021)
What approximate amount of ATP is used by a resting human in 24 hours?
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?
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?
Ground state valence shell electronic configuration of barium is
Which of the following statement is incorrect regarding use of caustic soda?
Which of the following is used in the preparation of cakes or pastries?
Which of the following statements(s)is/are correct regarding sodium hydroxide? I. It is white and translucent. II. It melts at 591K. III. It is non-deliquescent IV. It is soluble in water and its aqueous solution is…
The formula of soda ash is
Which of the following is commonly named as caustic soda?
Sodium hydroxide is commercially prepared by