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Q97) In silicon dioxied [ AIEEE 2005]




SOLUTION


Answer: (a)


Q98) The stability of carbon tetrahalides of carbon decreases in the order




SOLUTION

Down the groups of halides electronegativity decreases, hence difference in electronegativity of C and halide decreases so the stability
Answer: (a)


Q99) Water gas is a mixture of



SOLUTION


Answer:(b)



Q100) Which of the following is amphotoric



SOLUTION

SnO2 is amphotoric down the group basic character increases
Answer: (c)


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