Write down the names of compounds represented by the following formula:
(i) Al2(SO4)3
(ii) CaCl2
(iii) K2SO4
(iv) KNO3
(v) CaCO3
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Removal of H2O from atmospheric air using anhydrous CaCl2 is an example of which change- physical or chemical?
Physical change as CaCl2 is a hygroscopic substance which absorbs H2O without actually reacting with it.
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Removal of H2O from atmospheric air using anhydrous CaCl2 is an example of which change- physical or chemical?
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Write IUPAC names for the following compounds. a) ClCH₂CH₂OH. b) CH₂=CH–CHO. c) CH ≡C–COOH.
(a) 2–Chloroethan –ol. (b) Prop–2–en–1–al. (c) Prop–2–yn– 1–oic acid.
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Write down the formula of (i) sodium oxide (ii) aluminium chloride (iii) sodium suphide (iv) magnesium hydroxide
(i) Sodium oxide → Na2O (ii) Aluminium chloride → AlCl3 (iii) Sodium suphide → Na2S (iv) Magnesium hydroxide → Mg(OH)2
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Mention the role of following : (a) SiO2 in the metallurgy of Cu. (b) CaCO3 in the metallurgy of F
[Hint : (a) Flux (b) CaCO3 decomposed to CaO, which acts as flux. (c) Reducing agent ...
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Write the IUPAC names of the following coordination compounds: (i) [Co(NH3)6]Cl3 (ii) [Co(NH3)5Cl]Cl2
(i) Hexaamminecobalt(III) chloride (ii) Pentaamminechloridocobalt(III) chloride (iii) Potassium hexacyanoferrate(III) (iv) Potassium trioxalatoferrate(III) (v) Potassium tetrachloridopalladate(II) (vi) Diamminechlorido(methylamine)platinum(II) chloride
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Write IUPAC names of the following compounds and classify them into primary, secondary
(i) 1-Methylethanamine (10 amine) (ii) Propan-1-amine (10 amine) (iii) N−Methyl-2-methylethanamine (20 amine) (iv) 2-Methylpropan-2-amine (10 amine) (v) N−Methylbenzamine or N-methylaniline (20 amine) (vi) N-Ethyl-N-methylethanamine (30 amine) (vii) 3-Bromobenzenamine or 3-bromoaniline (10 amine)
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Write the type of isomerism exhibited by the following complexes : (i) [Co(NH3)5Cl]SO4
(i) Ionization (ii) Optical (iii)Coordination isomerism
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Some iron nails were dropped in an unknown solution taken in a beaker and left for 10 minutes. (A) Al2(SO4)3 (B) CuSO4
The correct answer is (B) CuSO4
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What are covalent compounds ? How are they different from ionic compounds ? List any two properties of covalent compounds.
The compounds that are formed due to sharing of electrons between. two atoms/ compounds having covalent bonds. Ionic compounds are formed due to a transfer of electrons from one atom to...
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