11. THE P-BLOCK ELEMENTS
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11. THE P-BLOCK ELEMENTS

190010 The product obtained when silica reacts with hydrogen fluoride is

1 \(SiF_4\)
2 \(H_2SiF_6\)
3 \(H_2SiF_4\)
4 \(H_2SiF_3\)
11. THE P-BLOCK ELEMENTS

190011 Group \(13\) elements show \(+1\) and \(+3\) oxidation states. Relative stability of \(+3\) oxidation state may be given as

1 \(Tl^{3+} > In^{3+} > Ga^{3+} > Al^{3+} > B^{3+}\)
2 \(B^{3+} > Al^{3+} > Ga^{3+} > In^{3+} > Tl^{3+}\)
3 \(Al^{3+} > Ga^{3+} > Tl^{3+} > In^{3+} > B^{3+}\)
4 \(Al^{3+} > B^{3+} > Ga^{3+} > Tl^{3+} > In^{3+}\)
11. THE P-BLOCK ELEMENTS

190012 \(BCl_3 + H_2O \longrightarrow\) Product, here product

1 \(H_3BO_3 + HCl\)
2 \(B_2O_3 + HOCl\)
3 \(B_2H_6 + HCl\)
4 \(B_2O_3 + HCl\)
11. THE P-BLOCK ELEMENTS

190013 Which of the following order is correct ?

1 \(Si-Si > C-C > Ge-Ge\) (Bond energy)
2 \(H-H > F-F > C-C\) (Bond energy)
3 \(Ge < Sn < Pb\) (ability of \(ns^2e^-\) to participate in bonding)
4 \(SiH_4 > SnH_4 > PbH_4 > CH_4\) (easy of hydrolysis)
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11. THE P-BLOCK ELEMENTS

190010 The product obtained when silica reacts with hydrogen fluoride is

1 \(SiF_4\)
2 \(H_2SiF_6\)
3 \(H_2SiF_4\)
4 \(H_2SiF_3\)
11. THE P-BLOCK ELEMENTS

190011 Group \(13\) elements show \(+1\) and \(+3\) oxidation states. Relative stability of \(+3\) oxidation state may be given as

1 \(Tl^{3+} > In^{3+} > Ga^{3+} > Al^{3+} > B^{3+}\)
2 \(B^{3+} > Al^{3+} > Ga^{3+} > In^{3+} > Tl^{3+}\)
3 \(Al^{3+} > Ga^{3+} > Tl^{3+} > In^{3+} > B^{3+}\)
4 \(Al^{3+} > B^{3+} > Ga^{3+} > Tl^{3+} > In^{3+}\)
11. THE P-BLOCK ELEMENTS

190012 \(BCl_3 + H_2O \longrightarrow\) Product, here product

1 \(H_3BO_3 + HCl\)
2 \(B_2O_3 + HOCl\)
3 \(B_2H_6 + HCl\)
4 \(B_2O_3 + HCl\)
11. THE P-BLOCK ELEMENTS

190013 Which of the following order is correct ?

1 \(Si-Si > C-C > Ge-Ge\) (Bond energy)
2 \(H-H > F-F > C-C\) (Bond energy)
3 \(Ge < Sn < Pb\) (ability of \(ns^2e^-\) to participate in bonding)
4 \(SiH_4 > SnH_4 > PbH_4 > CH_4\) (easy of hydrolysis)
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11. THE P-BLOCK ELEMENTS

190010 The product obtained when silica reacts with hydrogen fluoride is

1 \(SiF_4\)
2 \(H_2SiF_6\)
3 \(H_2SiF_4\)
4 \(H_2SiF_3\)
11. THE P-BLOCK ELEMENTS

190011 Group \(13\) elements show \(+1\) and \(+3\) oxidation states. Relative stability of \(+3\) oxidation state may be given as

1 \(Tl^{3+} > In^{3+} > Ga^{3+} > Al^{3+} > B^{3+}\)
2 \(B^{3+} > Al^{3+} > Ga^{3+} > In^{3+} > Tl^{3+}\)
3 \(Al^{3+} > Ga^{3+} > Tl^{3+} > In^{3+} > B^{3+}\)
4 \(Al^{3+} > B^{3+} > Ga^{3+} > Tl^{3+} > In^{3+}\)
11. THE P-BLOCK ELEMENTS

190012 \(BCl_3 + H_2O \longrightarrow\) Product, here product

1 \(H_3BO_3 + HCl\)
2 \(B_2O_3 + HOCl\)
3 \(B_2H_6 + HCl\)
4 \(B_2O_3 + HCl\)
11. THE P-BLOCK ELEMENTS

190013 Which of the following order is correct ?

1 \(Si-Si > C-C > Ge-Ge\) (Bond energy)
2 \(H-H > F-F > C-C\) (Bond energy)
3 \(Ge < Sn < Pb\) (ability of \(ns^2e^-\) to participate in bonding)
4 \(SiH_4 > SnH_4 > PbH_4 > CH_4\) (easy of hydrolysis)
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11. THE P-BLOCK ELEMENTS

190010 The product obtained when silica reacts with hydrogen fluoride is

1 \(SiF_4\)
2 \(H_2SiF_6\)
3 \(H_2SiF_4\)
4 \(H_2SiF_3\)
11. THE P-BLOCK ELEMENTS

190011 Group \(13\) elements show \(+1\) and \(+3\) oxidation states. Relative stability of \(+3\) oxidation state may be given as

1 \(Tl^{3+} > In^{3+} > Ga^{3+} > Al^{3+} > B^{3+}\)
2 \(B^{3+} > Al^{3+} > Ga^{3+} > In^{3+} > Tl^{3+}\)
3 \(Al^{3+} > Ga^{3+} > Tl^{3+} > In^{3+} > B^{3+}\)
4 \(Al^{3+} > B^{3+} > Ga^{3+} > Tl^{3+} > In^{3+}\)
11. THE P-BLOCK ELEMENTS

190012 \(BCl_3 + H_2O \longrightarrow\) Product, here product

1 \(H_3BO_3 + HCl\)
2 \(B_2O_3 + HOCl\)
3 \(B_2H_6 + HCl\)
4 \(B_2O_3 + HCl\)
11. THE P-BLOCK ELEMENTS

190013 Which of the following order is correct ?

1 \(Si-Si > C-C > Ge-Ge\) (Bond energy)
2 \(H-H > F-F > C-C\) (Bond energy)
3 \(Ge < Sn < Pb\) (ability of \(ns^2e^-\) to participate in bonding)
4 \(SiH_4 > SnH_4 > PbH_4 > CH_4\) (easy of hydrolysis)
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