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Science Adda247
❖ CBSE Class 12 Chemistry Pre Board Paper Out🔥📃| Class 12 Boards 2026📃 | By Ayushi Ma'am

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🛑 𝐕𝐈𝐉𝐄𝐓𝐀 𝐁𝐀𝐓𝐂𝐇
🛑 𝐕𝐈𝐉𝐄𝐓𝐀 𝐏𝐑𝐎 𝐁𝐀𝐓𝐂𝐇
🛑𝐂𝐋𝐀𝐒𝐒 𝟏𝟐+ 𝐂𝐔𝐄𝐓 𝐒𝐂𝐈𝐄𝐍𝐂𝐄 : 𝐕𝐈𝐉𝐄𝐓𝐀 𝐏𝐑𝐎 𝐌𝐚𝐱
Science Adda247
❖ Class 12 Physics Sample Paper 2026 | CBSE Official | Full Detailed Solution

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When wrong people leave, the right people get space to enter. Trust the process.

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What is the number of tetrahedral voids per atom in a crystal?
Anonymous Quiz
12%
1
39%
2
38%
6
10%
8
❤3
137 voters1.67K views
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Forwarded from Science Adda247
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🛑 𝐕𝐈𝐉𝐄𝐓𝐀 𝐁𝐀𝐓𝐂𝐇
🛑 𝐕𝐈𝐉𝐄𝐓𝐀 𝐏𝐑𝐎 𝐁𝐀𝐓𝐂𝐇
🛑𝐂𝐋𝐀𝐒𝐒 𝟏𝟐+ 𝐂𝐔𝐄𝐓 𝐒𝐂𝐈𝐄𝐍𝐂𝐄 : 𝐕𝐈𝐉𝐄𝐓𝐀 𝐏𝐑𝐎 𝐌𝐚𝐱
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The coordination number of Na+ in NaCl is
Anonymous Quiz
17%
6
18%
8
25%
4
40%
1
🤔7❤1
187 voters1.71K views
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In an antifluorite structure, cations occupy
Anonymous Quiz
30%
Octahedral voids
32%
Centre of cube
35%
Tetrahedral voids
3%
Corners of cube
🤔3
135 voters1.71K views
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In which of the following crystals alternate tetrahedral voids are occupied?
Anonymous Quiz
41%
NaCl
25%
ZnS
27%
CaF2
7%
Na2O
🤔3
151 voters1.75K views
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In CsCl type structure the coordination number of Cs+ and Cl− are
Anonymous Quiz
21%
6, 6
55%
6, 8
19%
8, 8
4%
8, 6
👍2
145 voters1.77K views
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❖ Class 12th Board 2026 | Maths Linear Programming and Probability Complete Chapter in One Shot

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❖ Class 12 English | Creative Writing Article & Report Writing | For Board Exam 2026 By Rubaika Ma'am

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❖ Class 12 Biology Sample Paper 2026 | CBSE Official | Full Detailed Solution

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🔥 Boards 2026 | 100% Confirmed Top 20 Chemistry Topics You Must Prepare
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❖ Ray Optics + Wave Optics One Shot | Class 12 Physics Revision 2026

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Your mindset decides how far you go.

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❤5
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Which of the following statements is not correct?
Anonymous Quiz
20%
The unit of surface tension is dynes cm−1
30%
The unit of viscosity coefficient is poise
21%
CsCl crystallizes in body centred cubic lattice
30%
All of these
❤3
145 voters1.83K views
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What is the coordination number of body centred cube?
Anonymous Quiz
23%
8
40%
6
20%
4
17%
12
❤2
171 voters1.75K views
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In a cubic structure where X is at corners and Y at face centres, the molecular formula is
Anonymous Quiz
27%
X2Y
38%
X3Y
23%
XY2
12%
XY3
138 voters1.79K views
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The 8:8 type of packing is present in
Anonymous Quiz
23%
MgF2
45%
CsCl
16%
KCl
17%
NaCl
151 voters2.21K views
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What is the structure of NaCl?
Anonymous Quiz
26%
BCC
37%
FCC
27%
Interpenetrating FCC
9%
None of these
151 voters2.21K views