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Class XI Chemistry States of Matter Quiz 1
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Question 1
Which of the following is not a function of an impurity present in a crystal?
Question 2
The flame colors of metal ions are due to:
Question 3
ZnO on heating change color from ______ to _______
Question 4
Give the correct order of initials T (true) or F (false) for following statements.
I) In an anti-fluorite structure anions form FCC lattice.
II) If the radius of cations and anions are 0.2 Å and 0.95 Å then coordinate number of cation in the crystal is 4.
III) An atom/ion is transferred from a lattice site to an interstitial position in Frenkel defect.
IV) Density of crystal always increases due to substitutinal impurity defect.
I) In an anti-fluorite structure anions form FCC lattice.
II) If the radius of cations and anions are 0.2 Å and 0.95 Å then coordinate number of cation in the crystal is 4.
III) An atom/ion is transferred from a lattice site to an interstitial position in Frenkel defect.
IV) Density of crystal always increases due to substitutinal impurity defect.
Question 5
Element X crystallizes in a 12 coordination FCC lattice. On applying high temperature, it changes to 8 coordination BCC lattice. Find the ratio of the density of the crystal lattice before and after applying high temperature?
Question 6
Select the incorrect statement:
Question 7
HgO is prepared by two different methods: one shows yellow color while the other shows red color. The difference in color is due to difference in
Question 8
Appearance of color in solid alkali metal halide is due to:
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May 24JEE & BITSAT