'X' metal produces XSO4, salt. Aqueous solution of this salt reacts with NaOH and produce blue coloured compound 'Y',
'X' metal reacts with
oxygen at high temperature and produce two black coloured compounds.
Identify X, Y, Z with equation
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metal x is copper and metal y is calcuim sulphate
cu+h2so4=cuso4+h2
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