Chemistry
GATE CY topic:solids PYQs
Build your understanding with focused practice from past exam papers.
How to practice topic:solids
Attempt a question, record the concept and assumptions, then check the available answer. Rework mistakes after revising the relevant concepts. Topic tags can overlap; review the question context.
Questions 1–10 of 16. Imported answers require independent review unless marked reviewed.
Question 53
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The correct statement(s) about the structure of metal oxides is(are)
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Upon cooling from room temperature, the magnetic susceptibility of MnO slowly increases until 118 K, and then it decreases. This phenomenon is known as
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The essential symmetry(ies) for a monoclinic crystal system is/are the presence of
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The compound(s) which show(s) the perovskite structure in solid state is (are)
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The packing efficiency (in %) of spheres for a body-centered cubic (bcc) lattice is approximately
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The diffraction angle (in degree rounded off to one decimal place) of (321) sets of plane of a metal with atomic radius 0.125 nm, and adopting BC structure is
(Given: the order of reflection is 1 and the wavelength of X-ray is 0.071 nm)
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Three different crystallographic planes of a unit cell of a metal are given below (solid circles represent atom). The crystal system of the unit cell is
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The metal borides that contain isolated boron atoms are:
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For a cubic crystal system, the powder X-ray diffraction pattern recorded using Cu K
source (
= 1.54 Å) shows a peak at 33.60° (
) for (111) plane. The lattice parameter ‘a’ (in Å, rounded off to two decimal places) is ______Log in to check the answer
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Consider that AgX crystallizes in rock salt structure. The density of AgX is 6477 kg/m
and unit cell length is 577.5 pm. Atomic weight of Ag is 107.87 g mol
. The atomic weight of X (in g mol
, rounded off to two decimal places) is ______Log in to check the answer
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