19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
A chemical (A) is used for the preparation of washing soda to recover ammonia. When CO2 is bubbled through an aqueous solution of A, the solution turns milky. It is used white washing due to disinfectant nature. What …
Chemical clinker can be obtained by the reaction of
‘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’?
The first ionization enthalpy of the alkaline earth metals are …X…. that of corresponding group I metal. Here, X refers to
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?
Choose the incorrect statement among the following.
Sodium ions found primarily in which part of human body?
A 70 Kg man contain about …X… of Na and …Y… of K. here, X and Y refer to
The formula of soda ash is
Which of the following is used in the preparation of cakes or pastries?
Which of the following statement is incorrect regarding use of caustic soda?
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 hydration enthalpies of alkali metal ions …A… with increase in ionic sizes. Here, A refer to
Sodium chloride is prepared by the electrolysis of sodium chloride solution the electrodes used as cathode and anode are respectively.
Sodium hydroxide is commercially prepared by
The most correct reason for colour of alkali metal ions is