Chemistry questions
29404 published questions with worked solutions.
- At room temperature, sodium crystallizes in a body centered cubic lattice with a = 4.24 Å. The theoretical density of sodium (At....Not in JEE Main or NEET syllabus
- Xenon crystallizes in face centre cubic lattice and the edge of the unit cell is 620 pm, then the radius of Xenon atom is _____Not in JEE Main or NEET syllabus
- A compound CuCl has face centered cubic structure. Its density is 3.4 g ,cm^ -3 . The length of unit cell is _____ (Atomic mass...Not in JEE Main or NEET syllabus
- The density of KBr is 2.75 gm ,cm^ -3 . Length of the unit cell is 654 pm. K = 39, Br = 80. Then what is TRUE about the predicted...Not in JEE Main or NEET syllabus
- A mineral having the formula AB_2 crystallize in cubic close packed lattice with the A atoms occupying the lattice points. The...Not in JEE Main or NEET syllabus
- The ratio of cations to anion in a closed packed tetrahedral is _____Not in JEE Main or NEET syllabus
- The radius of the Na^+ ion is 95 pm and that of Cl^- ion is 181 pm. Predict the coordination number of Na^+Not in JEE Main or NEET syllabus
- The CORRECT statement for rock salt structure is _____Not in JEE Main or NEET syllabus
- KCl crystallises in the same type of lattice as NaCl. Calculate the ratio of the side of the unit cell for KCl to that for NaCl...Not in JEE Main or NEET syllabus
- NH_4Cl crystallises in bcc lattice with edge length of unit cell equal to 387 pm. If radius of Cl^- is 181 pm, the radius of...Not in JEE Main or NEET syllabus
- What is the simplest formula of a solid whose cubic unit cell has the atom A at each corner, the atom B at each face centre and C...Not in JEE Main or NEET syllabus
- A binary solid (A^+B^-) has a rock salt structure. If the edge length is 400 pm and radius of cation is 75 pm, the radius of...Not in JEE Main or NEET syllabus
- The ionic radii of Rb^+ and I^- are 1.46 and 2.16 Å. The most probable type of structure exhibited by it is _____ typeNot in JEE Main or NEET syllabus
- The unit cell cube length for LiCl (just like NaCl structure) is 5.14 Å. Assuming anion-anion contact, the ionic radius for...Not in JEE Main or NEET syllabus
- Which of the following adopts normal spinel structure?Not in JEE Main or NEET syllabus
- A solid AB has rock salt structure. If the edge length is 520 pm and radius of anion A^+ is 80 pm, the radius of anion B^- would...Not in JEE Main or NEET syllabus
- How many atoms are there in a unit cell of Mg which forms hexagonal crystals, there being a face-centered atom in each end of the...Not in JEE Main or NEET syllabus
- The structure of MgO is similar to NaCl. What would be the coordination number of magnesium?Not in JEE Main or NEET syllabus
- The coordination number of a cation occupying a tetrahedral hole is _____Not in JEE Main or NEET syllabus
- Zinc sulphide exists in two different forms zinc blende and wurtzite. Both occur as 4 : 4 coordination compounds. Choose the...Not in JEE Main or NEET syllabus