Which configuration represents a noble gas (a) 1s22s22p63s23p63d104s2 (b) 1s22s22p63s23p6 (c) 1s22s22p63p6 (d) 1s22s22p63s2
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How much of the high-grade coal priced at INR 600/kg should be mixed to 200 kg of ordinary coal, priced at INR
450/kg, so as to make a profit of 11%, selling the mixture at INR 550/kg?
85 kg
250 kg
175 kg
100 kg
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