Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)

In a solid lattice the cation has left a lattice site and is located at an interstitial position , the lattice defect is In a solid lattice the cation has left a lattice site and is located at an interstitial position the lattice defect is February 9, 2021 Category: Uncategorised (JEE Advanced Physics by BM [...]

Assertion: In close packing of spheres, atetrahedral void is surrounded by four spheres whereas an octahedral void is surrounded by six spheres. Reason : A tetrahedral void has a tetrahedral shape whereas an octahedral void has an octahedral shape. Assertion : In close packing of spheres In A^+ B^- ionic compound radii of A^+ and [...]

The hybridization state of carbon atoms in the product formed by the reaction of ethyl chloride with aqueous potassium hydroxide is (a) sp (b) sp2 (c) sp3 (s) sp3d The hybridization state of carbon atoms in the product formed by the reaction of ethyl chloride with aqueous potassium hydroxide is (a) sp (b) sp2 (c) [...]

Assertion : Cyclic silicates and chain silicates have the same general molecular formula. Reason: In cyclic silicates, three corners of each SiO4 tetrahedron are shared while in chain silicates only two are shared with other tetrahedra. Assertion : Cyclic silicates and chain silicates have the same general molecular formula . Reason : In cyclic silicates [...]

Assertion : In crystal lattice , the size of the cation is larger in a tetrahedral hole than in an octahedral hole. Reason : The cations occupy more space than anions ion crystal packing. Assertion : In crystal lattice the size of the cation is larger in a tetrahedral hole than in an octahedral hole. [...]

Schottky defect in crystals is observed when (a) density of crystal is increased (b) unequal number of cations and anions are missing from the lattice (c) an ion leaves its normal site and occupies an interstitial site (d) equal number of cations and anions are missing from the lattice In A^+ B^- ionic compound radii [...]

An example of a non – stoichiometric compound is (a) Al2O3 (b) Fe3O4 (d) NiO2 (d) pbO An example of a non - stoichiometric compound is (a) Al2O3 (b) Fe3O4 (d) NiO2 (d) pbO February 9, 2021 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

Ethyl orthoformate is formed by heating with sodium ethoxide (a) CHCl3 (b) C2H5OH (c) HCOOH (d) CH3CHO Ethyl orthoformate is formed by heating with sodium ethoxide (a) CHCl3 (b) C2H5OH (c) HCOOH (d) CH3CHO February 9, 2021 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

Wurtz reaction of methyl iodide yields an organic compound X. Which one of the following reactions also yields X Wurtz reaction of methyl iodide yields an organic compound X. Which one of the following reactions also yields X February 9, 2021 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

A dihalogen derivative ‘X’ of a hydrocarbon with three carbon atoms reacts with alcoholic KOH and produces another hydrocarbon which forms a red precipitate with ammoniacal Cu2Cl2. ‘X’ gives an aldehyde on reaction with aqueous KOH. 4-dinitrochlorobenzene is readily replaced because Replacement of Cl of chlorobenzene to give phenol requires drastic conditions but chlorine of [...]