Boron and its Compounds
« First Topic in Next Topic: Carbon and its Compounds »
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
CHXI11:THE P-BLOCK ELEMENTS

316104 Boric acid acts as an

1 analgesic
2 antibiotic
3 antiseptic
4 antacid.
CHXI11:THE P-BLOCK ELEMENTS

316105 Which of the following statements about \(\mathrm{H}_{3} \mathrm{BO}_{3}\) is not correct?

1 It is a strong tribasic acid
2 It is prepared by acidifying an aqueous solution of borax
3 It has a layer structure in which planar \(\mathrm{BO}_{3}\) units are joined by hydrogen bonds
4 It does not act as proton donor but acts as a Lewis acid by accepting hydroxyl ion
CHXI11:THE P-BLOCK ELEMENTS

316106 When orthoboric acid \(\left(\mathrm{H}_{3} \mathrm{BO}_{3}\right)\) is heated, the residue left is

1 Metaboric acid
2 Boron
3 Boric anhydride
4 Borax
CHXI11:THE P-BLOCK ELEMENTS

316107 In the following unbalanced equation, the molar mass of the product ' X ' is ____\({\mathrm{\mathrm{g} \mathrm{~mol}^{-1}}}\).
(At. Wt. \({\mathrm{\mathrm{Ca}=40 \mathrm{u}, \mathrm{B}=10.8 \mathrm{u}, \mathrm{O}=16 \mathrm{u}, \mathrm{S}=32 \mathrm{u}}}\),
\({\mathrm{\mathrm{H}=1 \mathrm{u})}}\)
\({\mathrm{\mathrm{Ca}_{2} \mathrm{~B}_{6} \mathrm{O}_{11}+\mathrm{SO}_{2}+\mathrm{H}_{2} \mathrm{O} \longrightarrow \mathrm{Ca}\left(\mathrm{HSO}_{3}\right)_{2}+\mathrm{X}}}\)

1 72
2 61.8
3 158
4 124
NEET DIGITAL LIBRARY
CHXI11:THE P-BLOCK ELEMENTS

316104 Boric acid acts as an

1 analgesic
2 antibiotic
3 antiseptic
4 antacid.
CHXI11:THE P-BLOCK ELEMENTS

316105 Which of the following statements about \(\mathrm{H}_{3} \mathrm{BO}_{3}\) is not correct?

1 It is a strong tribasic acid
2 It is prepared by acidifying an aqueous solution of borax
3 It has a layer structure in which planar \(\mathrm{BO}_{3}\) units are joined by hydrogen bonds
4 It does not act as proton donor but acts as a Lewis acid by accepting hydroxyl ion
CHXI11:THE P-BLOCK ELEMENTS

316106 When orthoboric acid \(\left(\mathrm{H}_{3} \mathrm{BO}_{3}\right)\) is heated, the residue left is

1 Metaboric acid
2 Boron
3 Boric anhydride
4 Borax
CHXI11:THE P-BLOCK ELEMENTS

316107 In the following unbalanced equation, the molar mass of the product ' X ' is ____\({\mathrm{\mathrm{g} \mathrm{~mol}^{-1}}}\).
(At. Wt. \({\mathrm{\mathrm{Ca}=40 \mathrm{u}, \mathrm{B}=10.8 \mathrm{u}, \mathrm{O}=16 \mathrm{u}, \mathrm{S}=32 \mathrm{u}}}\),
\({\mathrm{\mathrm{H}=1 \mathrm{u})}}\)
\({\mathrm{\mathrm{Ca}_{2} \mathrm{~B}_{6} \mathrm{O}_{11}+\mathrm{SO}_{2}+\mathrm{H}_{2} \mathrm{O} \longrightarrow \mathrm{Ca}\left(\mathrm{HSO}_{3}\right)_{2}+\mathrm{X}}}\)

1 72
2 61.8
3 158
4 124
Join With Us for More Updates
CHXI11:THE P-BLOCK ELEMENTS

316104 Boric acid acts as an

1 analgesic
2 antibiotic
3 antiseptic
4 antacid.
CHXI11:THE P-BLOCK ELEMENTS

316105 Which of the following statements about \(\mathrm{H}_{3} \mathrm{BO}_{3}\) is not correct?

1 It is a strong tribasic acid
2 It is prepared by acidifying an aqueous solution of borax
3 It has a layer structure in which planar \(\mathrm{BO}_{3}\) units are joined by hydrogen bonds
4 It does not act as proton donor but acts as a Lewis acid by accepting hydroxyl ion
CHXI11:THE P-BLOCK ELEMENTS

316106 When orthoboric acid \(\left(\mathrm{H}_{3} \mathrm{BO}_{3}\right)\) is heated, the residue left is

1 Metaboric acid
2 Boron
3 Boric anhydride
4 Borax
CHXI11:THE P-BLOCK ELEMENTS

316107 In the following unbalanced equation, the molar mass of the product ' X ' is ____\({\mathrm{\mathrm{g} \mathrm{~mol}^{-1}}}\).
(At. Wt. \({\mathrm{\mathrm{Ca}=40 \mathrm{u}, \mathrm{B}=10.8 \mathrm{u}, \mathrm{O}=16 \mathrm{u}, \mathrm{S}=32 \mathrm{u}}}\),
\({\mathrm{\mathrm{H}=1 \mathrm{u})}}\)
\({\mathrm{\mathrm{Ca}_{2} \mathrm{~B}_{6} \mathrm{O}_{11}+\mathrm{SO}_{2}+\mathrm{H}_{2} \mathrm{O} \longrightarrow \mathrm{Ca}\left(\mathrm{HSO}_{3}\right)_{2}+\mathrm{X}}}\)

1 72
2 61.8
3 158
4 124
For More Updates join with Us
CHXI11:THE P-BLOCK ELEMENTS

316104 Boric acid acts as an

1 analgesic
2 antibiotic
3 antiseptic
4 antacid.
CHXI11:THE P-BLOCK ELEMENTS

316105 Which of the following statements about \(\mathrm{H}_{3} \mathrm{BO}_{3}\) is not correct?

1 It is a strong tribasic acid
2 It is prepared by acidifying an aqueous solution of borax
3 It has a layer structure in which planar \(\mathrm{BO}_{3}\) units are joined by hydrogen bonds
4 It does not act as proton donor but acts as a Lewis acid by accepting hydroxyl ion
CHXI11:THE P-BLOCK ELEMENTS

316106 When orthoboric acid \(\left(\mathrm{H}_{3} \mathrm{BO}_{3}\right)\) is heated, the residue left is

1 Metaboric acid
2 Boron
3 Boric anhydride
4 Borax
CHXI11:THE P-BLOCK ELEMENTS

316107 In the following unbalanced equation, the molar mass of the product ' X ' is ____\({\mathrm{\mathrm{g} \mathrm{~mol}^{-1}}}\).
(At. Wt. \({\mathrm{\mathrm{Ca}=40 \mathrm{u}, \mathrm{B}=10.8 \mathrm{u}, \mathrm{O}=16 \mathrm{u}, \mathrm{S}=32 \mathrm{u}}}\),
\({\mathrm{\mathrm{H}=1 \mathrm{u})}}\)
\({\mathrm{\mathrm{Ca}_{2} \mathrm{~B}_{6} \mathrm{O}_{11}+\mathrm{SO}_{2}+\mathrm{H}_{2} \mathrm{O} \longrightarrow \mathrm{Ca}\left(\mathrm{HSO}_{3}\right)_{2}+\mathrm{X}}}\)

1 72
2 61.8
3 158
4 124
NEET DIGITAL LIBRARY