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mnsoomro
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Isotopes differs in______________________?
A. arrangement of electrons in orbitals B. position in the periodic table C. properties depend upon mass D. chemical properties…
The compound which is added to leaded gasoline to save engine from lead oxide and lead sulphate deposits is__________________?
A. Ethylene iodide B. Ethylene bromide C. Ethylene chloride D. Ethylene fluoride Submitted by :- Jamil Ahmed
Acid present in acid rain may be_________________?
A. H2SO4 B. HNO3 C. both A and B D. none of the above Submitted by :- Jamil Ahmed
Which is carnalite________________?
A. KCI B. NaCI C. KCI MgCl2 6H2O D. Na2CO3. 1H2O Submitted by :- Jamil Ahmed
Which is the unit of (K) rate constant for zero order reaction ?
A. s-1 B. mol dm-3 s-1 C. mol-1 dm3 s-1 D. mol-2 dm6 s-1 Submitted by :- Jamil Ahmed
Which of the following can be used in laptops ?
A. Silver oxide battery B. Fuel cell C. Nickel cadmium cell D. Lead accumulator Submitted by :- Jamil Ahmed
Which of the following solution has the highest boiling point ?
A. 5.85% NaCl Solution B. 18.0 % glucose solution C. 6.0 % urea solution D. All have same boiling point…
Quantum number values for 3p orbitals are____________________?
A. n=3 l=2 B. n=3 l= C. n=3 l=1 D. n=3 l=3 Submitted by :- Jamil Ahmed
Only London dispersion forces are present among the_________________?
A. Molecules of water in liquid state B. Atoms of helium in gaseous state at high temperature C. Molecules of…
The molecules of CO2 in dry ice form__________________?
A. Ionic crystal B. Covalent crystal C. Molecular crystal D. Any type of crystal Submitted by :- Jamil Ahmed