Let’s have a look at the Important General Science Questions that are being covered in the SSC CGL 2021 Tier-1 Exam: 6. What is the valency of the halogen group? Answer: One - Valency level of the ...
9. What is the use of ECG? Answer: An electrocardiogram (ECG) is a simple test that can be used to check your heart's rhythm and electrical activity.
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