- (A) sodium
- (B) diamond
- (C) graphite
- (D) magnesium
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- (A) Teflon
- (B) asbestos
- (C) saran
- (D) acrylic
- (A) Electrons fill orbitals with parallel spins until all the orbitals of the same energy are half filled then they go into sub-shells with anti-parallel (opposite) spin.
- (B) The electrons in the same atom cannot have the same four quantum numbers
- (C) There is maximum of two electrons is an orbital.
- (D) None
- (A) 1
- (B) 2
- (C) 3
- (D) 4
- (A) n2a/v correct for the intermolecular forces.
- (B) nb correct for the volume occupied by gas molecules.
- (C) at high densities the equation reduces to the ideal gas law
- (D) all of the above statements are correct.
- (A) Quantum structure
- (B) Secondary structure
- (C) Tertiary structure
- (D) Primary structure
- (A) Pb3 O4
- (B) 2Pb CO3 – Pb (OH)2
- (C) Pb Cr O4 – Pb (OH)2
- (D) Pb2O
- (A) IIIA group
- (B) IVA group
- (C) VA group
- (D) VIA group
- (A) Si
- (B) As
- (C) Te
- (D) None of the above
- (A) Ag
- (B) A
- (C) Au
- (D) Cu
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