Teaching UP TGT Mock Test Series 2025 General Science Chemistry Structure of Atom

ଏକ ଜଳ ଅଣୁରେ, ହାଇଡ୍ରୋଜେନର ବସ୍ତୁତ୍ୱ ଏବଂ ଅମ୍ଳଜାନର ବସ୍ତୁତ୍ୱର ଅନୁପାତ ସର୍ବଦା ________ ଅଟେ |

1
7: 1
2
8: 1
3
1: 7
4
1: 8
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