engineering recuitment DRDO CEPTAM STA B Tier I (Sr. Technical Assistant) Mock Test 2022 General Science Chemistry Equilibrium

अम्लीय द्रावणामध्ये, चीन गुलाब सूचक ______ होतो.

1
नारंगी
2
हिरवा
3
मजेंटा (गडद गुलाबी)
4

रंगहीन

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