Practice Test


Q1) Which of the following has the least bond angle ? Show Answer


Q2) Which of the following will have a low heat of fusion ? Show Answer


Q3) Sulphuric acid molecule contains Show Answer


Q4) The combination of atoms takes place, hence Show Answer


Q5) The compound which does not contain bond is Show Answer


Q6) Which of the following is an ionic compound ? Show Answer


Q7) Which of the following compound does not follow octet rule ? Show Answer


Q8) Which of the following statements concerning elements with atomic number 10 is true ? Show Answer


Q9) Metals are malleable and ductile because of Show Answer


Q10) With increase in temperature, the conductivity of the metals Show Answer


Q11) Alkali metals (Na, K, etc.) conduct electricity because Show Answer


Q12) Metallic bound is Show Answer


Q13) Which of the following is solid with highest melting point ? Show Answer


Q14) Which of the following is an example of super octet molecule ? Show Answer


Q15) Which of the following molecule is theoretically not possible ? Show Answer


Q16) The first four ionization energy values of an element are 191, 578, 872 and 5962 kcal. The number of valence electrons in the element is Show Answer


Q17) An atom X has three valence electrons and atom Y has six valence electrons. The compound formed between them will have the formula Show Answer


Q18) Which of the following is a non-directional bond ? Show Answer


Q19) Which of the following has zero value of dipole moment ? Show Answer


Q20) Which of the following gaseous molecules is polar ? Show Answer


Q21) Which of the following compounds is non-polar ? Show Answer


Q22) Which of the following molecules has a high dipole moment ? Show Answer


Q23) The molecule that does not possess a permanent dipole moment is Show Answer


Q24) The octet rule is not valid for the molecule Show Answer


Q25) According to Fajan's rules covalent bonding is favourable by Show Answer


Q26) Maximum number of covalent bonds between two atoms of a covalent compound will be Show Answer


Q27) Which of the following has the highest bond dissociation energy ? Show Answer


Q28) The process of electron transfer is : Show Answer


Q29) Molten sodium chloride conducts electricity due to the presence of : Show Answer


Q30) Which of the following has covalent bond ? Show Answer


Q31) The formation of a chemical bond is accompanied by Show Answer


Q32) Which one of the following has high melting and boiling points ? Show Answer


Q33) The bond formed between two elements having electronegativities 1.2 and 3.0 would be Show Answer


Q34) Element X is strongly electropositive and element Y is strongly electronegative. Both are univalent. Their compound formed would be Show Answer


Q35) An element Y has a ground state configuration 2, 8, 8. The type of bond that exists between the atoms of Y is Show Answer


Q36) An electrovalent compound does not show isomerism due to : Show Answer


Q37) Which of the following has electrovalent, covalent and co-ordinate bonds ? Show Answer


Q38) The formation of chemical bond is accompanied by Show Answer


Q39) Outermost shells of two elements X and Y have two and six electrons respectively. If they combine the expected formula of the compound will be Show Answer


Q40) An electrovalent compound does not show isomerism due to Show Answer


Q41) Elements whose electronegativities are 1.2 and 3.0, bond formed between them would be Show Answer


Q42) Which one of the following has high melting and boiling points ? Show Answer


Q43) Ionic bond formation is Show Answer


Q44) Many ionic crystals dissolve in water because Show Answer


Q45) Which one of the following has a giant covalent structure ? Show Answer


Q46) Which one of the following is a covalent molecule ? Show Answer


Q47) Which one of the following has highest dipole moment ? Show Answer


Q48) Which one of the following is correct ? Show Answer


Q49) Both ionic and covalent bond present in Show Answer


Q50) Which contain both polar and non-polar bonds ? Show Answer


Q51) Which of the following having electrovalent, covalent and coordinate covalent bond ? Show Answer


Q52) Hydrogen fluoride is a liquid unlike other hydrogen halides because
Show Answer


Q53) Which one of the following has odd electron bond ?
Show Answer


Q54) Which of the following is soluble in water ?
Show Answer


Q55) ASSERTION :
Purely covalent compounds cannot conduct electricity while purely ionic compound.
REASON :
Purely covalent compounds have lower melting and boiling point than purely ionic compounds.
Show Answer


Q56) ASSERTION :
Fluorine exhibits the same oxidation state in all its compounds.
REASON :
Fluorine atom has no d-orbital in its valence shell.
Show Answer