Assertion :Al(OH)3 is amphoteric in nature. Reason: Al-O and O-H bonds can be broken with equal ease in Al(OH)3.
Assertion (A) Phenols give o-and p-nitrophenol on nitration with conc. HNO3 and H2SO4 mixture. Reason (R) - OH group in phenol is o-,p-directing. (a) Assertion and reason both are correct and reason is correct explanation of assertion. (b) Assertion and reason both are wrong statements. (c) Assertion is correct statement but reason is wrong statement. (d) Assertion is wrong statement but reason is correct statement. (e) Both assertion and reason are correct statements but reason is not correct explanation of assertion.
Assertion: Be and Al have similar properties.
Reason: Be2+ and Al3+ have nearly the same charge/volume ratios and similar polarising power.
Assertion – The non-fusible impurities present in iron ore are removed by CaCO3 .
Reason: CaCO3 which decomposes into CaO and CO2. The CaO formed reacts with SiO2 to remove silica