Q1. From which tree is 'katha' extracted in Rajasthan?
A Khejri
B Palas
C Khair Correct
D Dhok
Explanation
Katha, used in paan and traditional preparations, is obtained from the heartwood of the Khair tree. In Rajasthan, Khair is the recognised source for this forest product. Khejri is better known for its role in arid-zone ecology and fodder, not for katha extraction. Palas is associated with gum, dye and lac-related uses. Dhok is a common dry deciduous tree in the Aravalli belt, but it is not the commercial source of katha. Therefore, the published key correctly points to Khair.