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mnsoomro
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Which of the following is not a macromolecule ?
A. sand B. hemoglobin C. diamond D. maltose Submitted by :- Jamil Ahmed
Mostly elements have fractional atomic masses because of______________________?
A. Mass of an atom itself is in fraction B. Atomic masses are average masses of isobars C. Atomic masses…
The volume occupied by 2.8 g of N2 at STP______________________?
A. 2.24 dm3 B. 22.4 dm3 C. 1.12 dm3 D. 112 dm3 Submitted by :- Jamil Ahmed
Which one of the following is not the mono isotopic element ?
A. arsenic B. uranium C. iodine D. nickel Submitted by :- Jamil Ahmed
Which of the following terms is used for the mass of chlorine 35.5 ?
A. relative atomic mass B. mass number C. atomic weight D. relative isotopic mass Submitted by :- Jamil Ahmed
Size of molecule depends upon________________?
A. Atomicity B. Shape of molecule C. Both A and B D. Difficult to predict Submitted by :- Jamil Ahmed
Avogadro’s number may represent_________________?
A. volume of particles B. number of particles C. mass of particles D. All of the above Submitted by :-…
Molecular ions are formed by passing______________________?
A. High energy electron beam B. alpha particle C. X-rays D. All of the above Submitted by :- Jamil Ahmed
Which of the following are isoelectronic species ?
A. H+ H H- B. Li+ Na+ K+ C. C1- Br- I D. F- Ne Na+ Submitted by :- Jamil…
1 a.m.u =__________________?
A. 1.6 x 10^-27 kg B. 1.6 x 10^-24 kg C. 1.6 x 10^-26 kg D. 1.6 x 10^-28 kg…