Day 220: MHT-CET Chemistry

1. A.
   $17$
2. B.
   $16$
3. C.
   $18$
4. D.
   $1$

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1. A.
   $\mathrm{Zn + H_2SO_4 \rightarrow ZnSO_4 + H_2}$
2. B.
   $\mathrm{Al(OH)_3 + 3HCl \rightarrow AlCl_3 + 3H_2O}$
3. C.
   $\mathrm{Mg + 1/2O_2 \rightarrow Mg^{2+} + O^{2-}}$
4. D.
   $\mathrm{Fe_{(s)} + Cu^{2+}_{(aq)} \rightarrow Fe^{2+}_{(aq)} + Cu_{(s)}}$

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1. A.
   ${Li}_{2}$
2. B.
   $N_{2}$
3. C.
   $O_{2}$
4. D.
   $F_{2}$

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1. A.
   These are the atoms of same elements.
2. B.
   They have same chemical properties.
3. C.
   They occupy same position in the modern periodic table.
4. D.
   They have equal number of neutrons.

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1. A.
   Triamminetrinitrocobalt (III)
2. B.
   Pentacarbonyliron (0)
3. C.
   Tetraaminecopper (II) ion
4. D.
   Trioxalatocobaltate (III) ion

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