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Chemistry

States of Matter - Solid State

Isolation of Elements

p-Block Elements

d- and f-block elements

Coordinate Compounds

Haloalkanes and Haloarenes

Alcohols, Phenols and Ethers

Aldehydes, Ketones and Carboxylic Acids

Amines

Biomolecules

Polymers

Chemistry in everyday life

Graphite cannot be classified as

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Which of the following is true about the charge acquired by p- type semiconductor .

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To get a n- type , semi conductor from silicon, it should be doped with a substance with valence

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The total number of tetrahedral voids in the face- centred unit cell

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The percentage of empty space in a body centred cubic arrangement is

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What is the coordinate number in a square close packed structure in two dimensions .

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Silicon doped with electron - rich impurity forms :

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A ferromagnetic substance becomes a permanent magnet when it is placed in a magnetic field because

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The correct order of packing efficiency in different types of unit cell is

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Which of the following defect decrease the density ?

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Frenkel defect is also known as

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A compound contains two types of atoms x and y , it crystallizes in a cubic lattice with atoms X at the corners of the unit cell and atoms y at the body centers . The simplest possible formula of this compound is

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The schottky defects arises due to

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If a cation leaves a site in a solid lattice, and is located at an interstitial position , the lattice defect is $a/an$

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When the radius ratio lie between $0.732$ and $0.414$ the arrangement of the crystal is

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In a ZNS structure :

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Which of the following expressions is correct for CSCI unit with lattice parameter a?

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$Nio$ adops a rock- salt structure the coordination number of the $Ni^{2+}$ ion is

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The h.c.p and c.c.p structure for a given element would be expected to have

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The fluorite structure shows $8:4$ coordination which of the following show fluoride - like lattices ?

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Potassium metal crystallizes in the form of a body centered cubic structure . The number of nearest neighbor atom for each potassium atom in the solid is

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How many atoms are there in one unit cell of a body centered cubic crystal

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___________ are poor conductor of electricity and therefore are insulators in solid state ?

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Number of atoms in a unit cell for simple cubic is

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Which of the following solids shows electrical conduction ?

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Which one has highest melting point ?

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In the crystal of $Cscl$ , the nearest neighbours of each $C_s$ ion are

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When electron are trapped into the crystal in anion vacancy , the defect is known as

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The crystalline structure of $Nacl$ is

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The coordination number of a metal crystallizing in a hexagonal close packed (hcp) structure is

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Close packing is maximum in the crystal lattice of

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Which of the following statements is incorrect about amorphous solids ?

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In calcium fluoride structure , the coordination number of calcium and fluoride ions are :

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The closest packing sequence ABAB ..... represents

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Germanium or silicon becomes semiconductor due to

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The coordinate number for an atom in a primitive cubic unit cell is

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For tetrahedral coordination number the radius ratio $r_i^+/r_a^-$ is

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In a closed packed array of N spheres the number of tetrahedral holes is

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Bragg's law is given by the equation

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A match box exhibits

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Which one is not the property of crystalline solid ?

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Name one soild in which both frenkel and schootty defect occur.

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Which point defect lowers the density of a crysal ?

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How can a material be made amorphous ?

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What type of defect can arise when a solid is heated .

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Which of the following lattices has the highest packing efficiency .

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What is the two dimensional coordination number of a molecule in square close packed layer ?

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how is vant hoff factor taken out for a compound by its formula, eg: K4Fe(Cn)6

asked Jul 11, 2015 by chitrangada.singh.9

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how do metallic and ionic compound substances differ in conducting electricity

asked Jun 30, 2015 by apongchang27

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if 11 g of oxalic acid are dissolved in 500ml of solution (density=1.1g/ml) what is the mass% of oxalic acid in the solution?

asked Jun 15, 2015 by sivanya27

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