1. "Igneous rock"
2. "Sedimentary rocks"
3. "Metamorphic rocks"
4. "Marshy land"
Igneous rock
"1. "an insecticide"
2. "a herbicide"
3. "a warfare gas"
4. "a defoliant"
a warfare gas
"1. "Perspex"
2. "Dacron"
3. "Terylene"
4. "Bakelite"
Bakelite
"1. "are monostomic"
2. "have low ionization energy"
3. "have stable electronic configuration"
4. "have a high electron affinity"
have stable electronic configuration
"1. "alpha rays"
2. "beta rays"
3. "gamma rays"
4. "x-rays"
alpha rays
"1. "Sodium hydroxide and chlorine"
2. "Chlorine and sodium"
3. "Sodium hydroxide and oxygen"
4. "Chlorine and hydrogen"
Sodium hydroxide and chlorine
"1. "Paramagnetic"
2. "Diamagnetic"
3. "Ferromagnetic"
4. "Non-magnetic"
Diamagnetic
"1. "Calcium bicarbonate"
2. "Magnesium bicarbonate"
3. "Calcium sulphate"
4. "Sodium bicarbonate"
Calcium sulphate
"1. "meson"
2. "neutron"
3. "electron"
4. "proton"
electron
"1. "fix colors on fabrics"
2. "have a bleaching action"
3. " have a capacity of increasing the intensity of colors"
4. "are very hard solids"
fix colors on fabrics
"