Dear sir., I am giving tenth grade exam after that I want to do preparation for IIT so that which foran language to learn so that it will be helpful to me in future my best subject s are chemistry and maths.(german/french/spanish)

Thanks alotSir after bords exams I have a time of 45 days in that what will be my priority clearing my basic concept of pcm or target for up coming subjects and after attending regular classes of iit from July is it necessary look for online classes material.