Test Details

Solid State

JeeC12

Mar 19, 11:00 AM

50 minutes

Mar 19, 11:50 AM

25.0 marks

MCQ

25 questions

Jay

Good morning "Jay Sir's Academy" * Standard 11th & 12th (Physics, Chemistry Biology & Maths) Classes * Thorough preparation for JEE (Mains /Advance ) NEET, AIIMS, AFMC, CMC, NATA & MHT-CET. All Entrance Exams Preparation * Highly qualified faculty with international experience * Excellent Results * Limited batch size * Highly interactive teaching * Weekly tests, regular homework and quality notes * Regular discussions with parMost Successful mentor; experts in clearing concepts

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Chemistry

Chem

Chemistry

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Question Text

Question 1 :
In a normal spinel types structure, the oxide ions are arranged in ccp whereas 1/8 tetrahedral holes are occupied by ZN2+ ions and 50% of octahedral holes are occupied by Fe3+ ions. The formula of the compound is -

Question 3 :
In $sc, bcc$ and $fcc$ the ratio of number of atoms per unit cell is given by:

Question 5 :
Zinc Oxide, white in colour at room temperature, acquires yellow colour on heating due to:

Question 6 :
Which of the following statements is correct in the body centered type cubic structure of an ionic compound?

Question 7 :
In a compound, atoms of element Y form ccp lattice and those of element X occupy 2/3rd tetrahedral voids. The formula of the compound will be -

Question 8 :
The smallest repeating pattern which when repeated in three dimensions results in the crystal of the substance is called

Question 9 :
Percentages of free space in cubic close packed structure and in body centered packed structure are respectively

Question 10 :
copper crystallises in fcc with a unit cell length of 361 pm. What is the radius of copper atom ?

Question 12 :
A substance has density of 2 kg dm-3& it crystallizes to fcc lattice with edge length equal to 700 pm,then the moalr mass of the substance is

Question 13 :
If Z is the number of atoms in the unit cell that represents the closest packing sequence ABC ABC ... , the number of tetrahedral voids in the unit cell is equal to -

Question 14 :
A group IV A element with a density of 11.35 g/cm3 crystallise in a face centered cubic lattice whose unit cell edge length is 4.95Å. Calculate its atomic mass -

Question 15 :
The number of nearest neighbours to each sphere in hexagonal close packing pattern in its own layer will be:

Question 16 :
Which of the following statements is correct in the rock-salt structure of ionic compounds?

Question 17 :
In which of the following crystals alternate tetrahedral voids are occupied ?

Question 18 :
An element (atomic mass = 100 g/mole) having bcc structure has unit cell edge 400 pm. The density of the element is (no. of atoms in bcc(Z) = 2).

Question 20 :
The radius of Ag+ ion is 126 pm and that of Ι- ion is 216 pm. The co-ordination number of Ag+ ion is.

Question 21 :
In a compound, atoms of element Y form ccp lattice and those of element X occupy 2/3rd of tetrahedral voids. The formula of the compound will be

Question 22 :
Copper crystallises infcc lattice with a unit cell edge of 361 pm. The radius of copper atom is:

Question 23 :
An element 'A' has face-centred cubic structure with edge length equal to 361 pm. The apparent radius of atom 'A' is -

Question 24 :
In a face centred cubic cell, what is the contribution of an atom at the face-center?

Question 25 :
If three elements X, Y & Z crystallized in cubic solid lattice with X atoms at corners, Y atoms at cube centre& Z -atoms at the edges, then the formula of the compound is:

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