Some rivers are hills (I) + All hills are mountains (A) → Some rivers are mountains (I) + No mountain is a tree (E) → Some rivers are not tree (O). Hence, only I will follow. No mountain is a tree (E) + Some trees are branches (I) → Some braches are not mountains (O). Hence, conclusion II and IV do not follow but it will make a complementary pair. All hills are mountains (A) + No mountain is a tree (E) → No hill is a tree (E). Hence, conclusion III follow.
The chemical name of'Common salt’
Milk tastes sour when kept in the open for sometimes due to the formation of-
The gas usually causing explosions in coal mines is-
___________ is the process in which acids and bases react to form salts and water.
The most reactive among the halogens is-
The gas used for filling weather balloons is-
The major component of honey is-
The important ore of aluminium is-
Petroleum is a mixture of-
Manganite is an ore/mineral of