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Q.1 નીચે આપેલ પ્રક્રિયા માટેનાં વિધાનો પૈકી કયાં ખોટાં છે?
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Q.2 નીચે આપેલ પ્રક્રિયા માટેનાં વિધાનો પૈકી કયાં ખોટાં છે?$$2PbO(s) + C(s) \rightarrow 2Pb(s) + CO_2(g)$$(a) લેડ રિડક્શપામે છે.(b) કાર્બન ડાયૉક્સાઇન ડ ઑક્સિડેશન પામે છે.(c) કાર્બન ઑક્સિડેશન પામે છે.(d) લેડ ઑક્સાઇડ રિડક્શન પામે છે.
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Q.3 નીચે આપેલ પ્રક્રિયા માટેનાં વિધાનો પૈકી કયાં ખોટાં છે? 2PbO(s) + C(s) →2Pb(s) + CO2(g) (a) લેડ રિડક્શન પામે છે. (b) કાર્બન ડાયૉક્સાઇડ ઑક્સિડેશન પામે છે. (c) કાર્બન ઑક્સિડેશન પામે છે. (d) લેડ ઑક્સાઇડ રિડક્શન પામે છે.
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Q.4 3. લોખંડના ભૂકામાં મંદ હાઇડ્રોક્લોરિક ઍસિડ ઉમેરતાં શું થાય છે? સાચા જવાબ પર નિશાન કરો.
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Q.5 2. Fe2O3 + 2Al→ Al2O3 + 2Fe ઉપર દર્શાવેલી પ્રક્રિયા શેનું ઉદાહરણ છે?
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Q.6 2. $Fe_2O_3 + 2Al \rightarrow Al_2O_3 + 2Fe$ ઉપર દર્શાવેલી પ્રક્રિયા શેનું ઉદાહરણ છે?
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Q.7 1. નીચે આપેલ પ્રક્રિયા માટેનાં વિધાનો પૈકી કયાં ખોટાં છે?$$2PbO(s) + C(s) \rightarrow 2Pb(s) + CO_2(g)$$(a) લેડ રિડક્શન પામે છે.(b) કાર્બન ડાયૉક્સાઇડ ઑક્સિડેશન પામે છે.(c) કાર્બન ઑક્સિડેશન પામે છે.(d) લેડ ઑક્સાઇડ રિડક્શન પામે છે.
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Q.8 નીચે આપેલ પ્રક્રિયા માટેનાં વિધાનો પૈકી કયાં ખોટાં છે?