Question

व्हिच ऑफ द फॉलोइंग इज सिंथेटिक इंडिकेटर लिटमस एक्सट्रैक्ट ऑफ रेड कैब्बेज टरमरिक सॉल्यूशन मिथाइल ऑरेंज​

Answer 1

Methyl Orange is the synthetic indicator among all the given indicators as litmus is extracted from lichen,red cabbage is a cabbage which turns green in basic medium and turmeric solution is prepared by dissolving turmeric in water (turmeric is a natural indicator). Hence methyl orange is man made indicator.