A. IIIA group
B. IVA group
C. VA group
D. VIA group
Related Mcqs:
- The melting points and boiling points upto meddle of 3d- series ____________________?
A. increases
B. decreases
C. remain same
D. no regular trend - Boiling points of hydrocarbons increase with the increase in number of carbon atoms. It is mainly due to_________________?
A. More strength of H-bonding
B. More strength of London forces
C. Less polarizability
D. All of the above - The molal boiling point constant is the ration of the elevation of boiling point to____________________?
A. Molarity
B. Molality
C. More fraction of solvent
D. Mole fraction of solute - Shielding effect across the period ________________?
A. Increases
B. Decreases
C. Constant
D. None - The shielding Effect across the period __________?
A. Increases
B. Decreases
C. Remains Same
D. None of themSubmitted by: Aamir khan Hullio
- The property which increases upto group IV-A then decreases on wards_______________?
A. Ionization energy
B. Atomic radii
C. Melting & boiling points
D. Atomic volume - Upto ___________________ C atoms alkanes are gases?
A. 2
B. 3
C. 4
D. 6 - Melting points of VII-A group elements down the group ____________________?
A. Increase
B. Decrease
C. Remain constant
D. No regular trend - Which one of the followings possesses melting point below 0°C?
A. Nitrogen
B. Phosphorus
C. Carbon
D. Bismuth - In melting of iron, which of the following reactions takes place in Bladt Furnace at 400°C- 600°C________?
A. CaO+ SiO2——> CaSiO3
B. 2FeS+3O2——–> 2Fe+ SO2
C. FeSiO3———> FeSiO3
D. Fe2O3+ 3CO——–> 2Fe+ 3CO2Submitted by: Muhammad Ali Kunbhar