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the number of electrons involved in the bond formation of n2 molecule 1 2 2 4 3
the valency of sulphur in sulphuric acid is1 2 2 4 3
which of the following conduct electricity in the fused state1 becl 2
which of the following hydrides are ionic1 cah2
electrolytes are compound containing1 electrovalent bond2 covalent bond3 coordinate bond4 hydrogen bondans electrovalent
which of the following statements is not true for ionic compoundss1 high melting point2 least lattice energy3least solubility in organic compounds4
which of the following has highest melting point1 bacl2
the energy that opposes dissolution of a solvent is1 hydration
which of the following pairs of species has same electronic configuration1 zn2 and ni2
which of the following compounds is ionic1 kl 2
the interionic attraction depends on interaction of1
which one is the strongest bond1 br- f 2
atoms or group of atoms which are electrically charged are known 1
bond formed in crystal by anion and cation is1 ionic 2 metallic 3 covalent 4 dipoleans
an atom with atomic number 20 is most likely to combine chemically with the atom whose atomic number is1 11 2
which type of bonding exists in li2o and caf2 respectively 1 ionic
which of the following is least ionic1 c2 h5 cl
two element have electronegativity of 12 and 30 bond formed between them would be1 ionic2 polar covalent 3 co-ordinate4 metallica ns
an element x with the electronic configuration 1s2 2s2 2p6 3s2 would be expected to form the chloride with the formula1 xcl3
what is the effect of more electronegative atom on the strength of ionic bond1 decreases2 increase3 decreases slowly4 remains the sameans
highest melting point would be of1 he 2 cscl 3 nh3 4 chcl3ans
ionic compounds do not have1 hard and brittle nature2 high melting and boiling point3 directional properties4 soluble in polar solventsans
need to know common methods of preparing acetonepropanone need to include chemical equation for reaction that produces that
which of the answers listed below best completes the statement the rate at which any part of a wave travels from one place to another determines the
a satellite of mass m is in orbit around the earth if a second satellite of mass 2m is to be placed in the same orbit the second satellite must have