ଅମ୍ଳଜାନର ଗୋଟିଏ ଅଣୁର ବସ୍ତୁତ୍ୱ ହେଉଛି _____। 

1
2.3 × 10-23 g
2
3.3 × 10-23 g
3
4.3 × 10-23 g
4
5.3 × 10-23 g

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