19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Which of the following is used in the preparation of cakes or pastries?
The formula of soda ash is
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 h…
Which of the following ion is most abundant within cell fluid?
Which of the following is known molecular formula of washing soda?
Which of the following exist as decahydrate?
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 pot…
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…
Which of the following is correct regarding salt of oxo- acids of alkali metals?
Lithium being very small in size, which …A… a large CO ion leading to the formation of more stable …B.. and …C.. Here A, B and C 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 metals
Solvay process is used in the preparation of
On combustion in excess of air lithium forms mainly …X… sodium forms …Y… while potassium forms …Z…Here, X, Y and Z refer to
The alkali metal oxides dissolve in water to produce
Which of the following statement (s) is/are correct regarding alkali metal halides? I. They possess high melting point and are crystalline in nature. II. They are prepared by reaction of appropriate oxides with aqueou…
What will be the product when ammonium chloride is treated with calcium hydroxide?
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
Choose the incorrect statement out of the following
Potassium is not prepared by Solvay process because …X… is too soluble to be precipitated by addition of ammonium hydrogen carbonate. Here, X refer to
Powder of beryllium burns in air frequently to produce
Magnesium burns in air to produce MgO and …X… with …Y… flame. Here, X and Y refer to
When sodium nitrate is heated above 800° C then (JCECE 2006)
Lower melting point chloride is (JCECE 2006)
…A…is used in the manufacturing of soft soap. Here, A refer to