Classify the following into elements and compounds:
`(I) H_(2)O (ii) He (iii) Cl_(2) (iv) CO`

Which of the following are not ionic compounds ? (i) CaCl_(2) (ii) HCl (ii) C Cl_(4) (iv) NaCl

Classify the following as element and compound.(i) Silver (ii) Ammonia (iii) Water (iv) Mercury.

Which of the following are not ionic compounds? (i) KCl (ii) HCl (iii) C Cl_(4) (iv) NaCl

From the following , choose the ionic compounds : (i) CaCl_(2) (ii) C Cl_(4) (iii) KCl (iv) H_(2)S

Which of the following are not ionic compounds ? (I) AlCl_(3) (II) HCl (III) C Cl_(4) (IV) NaCl

Which of the following molecules are homoatomic ? (i) H_(2)O , (ii) O_(3) , (iii) NH_(3) , (iv) Cl_(2)

What type of bonds are present in the following molecules? Draw their electron-dot structures. (i) H_(2) (ii). CH_(4) (iii). Cl_(2) (iv). O_(2) .

Which of the following molecules behave as electrical dipoles ? (i) C Cl_(4) (ii) CHCl_(3) (iii) BF_(3) (iv) H_(2)O (v) BeF_(2) (vi) NH_(3)