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

189867 Carbogen is

1 Mixture of \(O_2 + 5-10\% \,CO_2\)
2 Used by pneumonia patient for respiration
3 Used by victims of \(CO\) poisoning
4 All
11. THE P-BLOCK ELEMENTS

189924 What is not true about borax ?

1 Molecular formula is \(Na_2B_4O_7.10H_2O\)
2 Crystalline borax also contains tetra nuclear unit
3 It hydrolyses to give an acidic solution
4 White crystalline solid
11. THE P-BLOCK ELEMENTS

189925 Pyrosilicate ion is

1 \(SiO_2\,^{2 - }\)
2 \(SiO_4\,^{2 - }\)
3 \(S{i_2}O_6\,^{7 - }\)
4 \(S{i_2}O_7\,^{6 - }\)
11. THE P-BLOCK ELEMENTS

189926 When \(B_2H_6 + NH_3(excess)\) at very high temperature \((> 200\,^oC\)) is formed

1 \([BH_2(NH_3)_2]^+[BH_4]^-\)
2 \((BN)_x\)
3 \(B_3N_3H_6\)
4 None
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11. THE P-BLOCK ELEMENTS

189867 Carbogen is

1 Mixture of \(O_2 + 5-10\% \,CO_2\)
2 Used by pneumonia patient for respiration
3 Used by victims of \(CO\) poisoning
4 All
11. THE P-BLOCK ELEMENTS

189924 What is not true about borax ?

1 Molecular formula is \(Na_2B_4O_7.10H_2O\)
2 Crystalline borax also contains tetra nuclear unit
3 It hydrolyses to give an acidic solution
4 White crystalline solid
11. THE P-BLOCK ELEMENTS

189925 Pyrosilicate ion is

1 \(SiO_2\,^{2 - }\)
2 \(SiO_4\,^{2 - }\)
3 \(S{i_2}O_6\,^{7 - }\)
4 \(S{i_2}O_7\,^{6 - }\)
11. THE P-BLOCK ELEMENTS

189926 When \(B_2H_6 + NH_3(excess)\) at very high temperature \((> 200\,^oC\)) is formed

1 \([BH_2(NH_3)_2]^+[BH_4]^-\)
2 \((BN)_x\)
3 \(B_3N_3H_6\)
4 None
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11. THE P-BLOCK ELEMENTS

189867 Carbogen is

1 Mixture of \(O_2 + 5-10\% \,CO_2\)
2 Used by pneumonia patient for respiration
3 Used by victims of \(CO\) poisoning
4 All
11. THE P-BLOCK ELEMENTS

189924 What is not true about borax ?

1 Molecular formula is \(Na_2B_4O_7.10H_2O\)
2 Crystalline borax also contains tetra nuclear unit
3 It hydrolyses to give an acidic solution
4 White crystalline solid
11. THE P-BLOCK ELEMENTS

189925 Pyrosilicate ion is

1 \(SiO_2\,^{2 - }\)
2 \(SiO_4\,^{2 - }\)
3 \(S{i_2}O_6\,^{7 - }\)
4 \(S{i_2}O_7\,^{6 - }\)
11. THE P-BLOCK ELEMENTS

189926 When \(B_2H_6 + NH_3(excess)\) at very high temperature \((> 200\,^oC\)) is formed

1 \([BH_2(NH_3)_2]^+[BH_4]^-\)
2 \((BN)_x\)
3 \(B_3N_3H_6\)
4 None
For More Updates join with Us
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
11. THE P-BLOCK ELEMENTS

189867 Carbogen is

1 Mixture of \(O_2 + 5-10\% \,CO_2\)
2 Used by pneumonia patient for respiration
3 Used by victims of \(CO\) poisoning
4 All
11. THE P-BLOCK ELEMENTS

189924 What is not true about borax ?

1 Molecular formula is \(Na_2B_4O_7.10H_2O\)
2 Crystalline borax also contains tetra nuclear unit
3 It hydrolyses to give an acidic solution
4 White crystalline solid
11. THE P-BLOCK ELEMENTS

189925 Pyrosilicate ion is

1 \(SiO_2\,^{2 - }\)
2 \(SiO_4\,^{2 - }\)
3 \(S{i_2}O_6\,^{7 - }\)
4 \(S{i_2}O_7\,^{6 - }\)
11. THE P-BLOCK ELEMENTS

189926 When \(B_2H_6 + NH_3(excess)\) at very high temperature \((> 200\,^oC\)) is formed

1 \([BH_2(NH_3)_2]^+[BH_4]^-\)
2 \((BN)_x\)
3 \(B_3N_3H_6\)
4 None
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