Chemistry What is the covalency of nitrogen in ammonia molecule 4 2 3 5 4 2 3 5 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Copper substances when exposed to air gains a green coating due to the formation of: CuSO4 CuCO3 Cu(OH)2 Cu(NO3)2 CuO CuSO4 CuCO3 Cu(OH)2 Cu(NO3)2 CuO ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which among the following is not a characteristic of transition metals? Malleability Low electronegativity Tendency to gain electrons Low ionization energy Malleability Low electronegativity Tendency to gain electrons Low ionization energy ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following gases is most toxic ? Carbon dioxide Chlorine Sulphur dioxide Carbon monoxide Carbon dioxide Chlorine Sulphur dioxide Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The number of water molecules present in a drop of water (volume 0.0018 ml) at room temperature is 6.023 x 1019 4.84 x 1017 1.568 x 103 6.023 x 1023 6.023 x 1019 4.84 x 1017 1.568 x 103 6.023 x 1023 ANSWER DOWNLOAD EXAMIANS APP
Chemistry 1 carat of diamond is equal to 200 g 100 g 100 mg 200 mg 200 g 100 g 100 mg 200 mg ANSWER DOWNLOAD EXAMIANS APP
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