प्रथम विश्वयुद्ध में निम्नलिखित में से किस एक का रासायनिक हथियार के रूप में उपयोग किया गया था?

Which formulation feature characterizes the 'SAFAL' (Safe Minimal Aluminium) green crackers developed by CSIR-NEERI to reduce emissions?

Tetraethyl lead (TEL) was historically used as a:

A dye that is synthesized directly inside the textile fiber during manufacturing via chemical reaction of insoluble coupling components is known as an: