IIT-JEE Exam

Amongst the following, the total number of compounds whose aqueous solution turns red litmus paper blue
is
KCN K2SO4 (NH4)2C2O4 NaCl Zn(NO3)2
FeCl3 K2CO3 NH4NO3 LiCN

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IIT-JEE Other Question

Based on VSEPR theory, the number of 90 degree F – Br – F angles in BrF5 is A student performs a titration with different burettes and finds titre values of 25.2 mL, 25.25 mL, and 25.0
mL. The number of significant figures in the average titre value is