From where the tin is obtained
From where the tin is obtained? Briefly illustrate it.
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The tin is obtained in different places. Tin is mainly found in the ore cassiterite that is found in the Bolivia, Malaysia, Thailand and Nigeria.
Can someone please help me in getting through this problem. 10 litre solution of urea comprises of 240 gm urea. The active mass of urea is: (i) 0.04 (ii) 0.02 (iii) 0.4 (iv) 0.2
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