Chemistry questions
29404 published questions with worked solutions.
- Consider the following statements : I. A solution of iodine in ethanol known as 'tincture of iodine' is a heterogeneous mixture....Not in JEE Main or NEET syllabus
- Consider the following statements : I. A 30% solution of hydrogen peroxide is marketed as '10 volume' H_2O_2. II. In the compound...
- Consider the following pairs : Chemical Reaction : Type of Chemical Reaction I. Fe ,(s) + CuSO_4 ,(aq.) FeSO_4 ,(aq.) + Cu ,(s) :...
- Coconut oil upon hydrolysis with potassium hydroxide gives :
- Consider the following statements regarding hydrogen bonds : I. Hydrogen bonds can only form when hydrogen is bonded to oxygen,...
- Ionic compounds have high melting and boiling points. This is due to :
- Consider the following pairs : Example of Colloid : Type of Colloid I. Cloud : Aerosol II. Mud : Sol III. Milk : Emulsion IV....Not in JEE Main or NEET syllabus
- A colorless aqueous solution contains nitrates of two metals, **X** and **Y**. When it was added to an aqueous solution of NaCl,...
- With respect to hypochlorite, chlorate and perchlorate ions, choose the correct statement(s).
- Consider a 70% efficient hydrogen-oxygen fuel cell working under standard conditions at 1 bar and 298 K. Its cell reaction is H...
- An organic compound ( C _8 H _ 10 O _2) rotates plane-polarized light. It produces pink color with neutral FeCl _3 solution. What...
- Which among the following statement(s) is(are) true for the extraction of aluminium from bauxite?Not in JEE Main or NEET syllabus
- Liquids **A** and **B** form ideal solution for all compositions of **A** and **B** at 25 ^ C . Two such solutions with 0.25 and...
- Tin is obtained from cassiterite by reduction with coke. Use the data given below to determine the minimum temperature (in K) at...
- An acidified solution of 0.05 M Zn ^ 2+ is saturated with 0.1 M H _2 S . What is the minimum molar concentration (M) of H ^+...
- The calculated spin only magnetic moments of [ Cr(NH _3)_6]^ 3+ and [ CuF _6]^ 3- in BM, respectively, are (Atomic numbers of Cr...
- The correct statement(s) related to colloids is(are)Not in JEE Main or NEET syllabus
- The correct statement(s) related to the metal extraction processes is(are)Not in JEE Main or NEET syllabus
- The maximum number of possible isomers (including stereoisomers) which may be formed on mono-bromination of...
- The total number of possible isomers for [ Pt(NH _3)_4 Cl _2] Br _2 is _____.