1
MHT CET 2023 14th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

In an ionic crystalline solid, atoms of element Y forms hcp structure. The atoms of element X occupy one third of tetrahedral voids. What is the formula of compound?

A
$$\mathrm{X}_2 \mathrm{Y}_3$$
B
$$\mathrm{XY}$$
C
$$\mathrm{X}_3 \mathrm{Y}_3$$
D
$$\mathrm{XY}_2$$
2
MHT CET 2023 14th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

What is total number of crystal systems associated with 14 Bravais lattices?

A
7
B
14
C
1
D
3
3
MHT CET 2023 13th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which statement from following about nano-material is NOT correct?

A
As the particle size decreases the total surface area of particles increases.
B
Nano-material based catalysts exhibit increased catalytic activities.
C
Nano-sized Cu and Pd clusters have very less hardness than bulk metal.
D
Carbon nano-tube can act as electrical conductor.
4
MHT CET 2023 13th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Find the radius of metal atom in bcc unit cell having edge length $$450 \mathrm{~pm}$$.

A
$$225.04 \mathrm{~pm}$$
B
$$194.85 \mathrm{~pm}$$
C
$$159.08 \mathrm{~pm}$$
D
$$90.05 \mathrm{~pm}$$
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