Formula for washing soda is?

1. Na2CO3.10H2O
2. Na2CO3.H2O
3. NaOH
4. None of these
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Answer: A
Explanation:
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Cncentrated Caustic Soda prepared in which cell?

1. Mercury Cell
2. Diaphram Cell
3. Venus Cell
4. None of these
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Answer: B
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When NaOH and water are present in 1:2 (50.2% by mass NaOH),reaction mixture is kept for several hours,what will be the product?

1. NaOH.2H2O
2. NaOH.4H2O
3. NaOH.H2O
4. NaOH
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Answer: C
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Elements having wide range oxidation states,form coordination compounds and have variable color?

1. Alkali metals
2. Alkaline metals
3. transition metals
4. Nobel gases
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Answer: C
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The strongest acid among hydrogen halide is?

1. HF
2. HCL
3. HBR
4. HI
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Answer: D
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Which 'one' is Amphoteric hydroxides?

1. Pb(OH)2
2. KOH
3. Mg(OH)2
4. Ba(OH)2
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Answer: A
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Lowry and Bronsted base is basically?

1. Proton Acceptor
2. Proton Donor
3. Both
4. None of these
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Answer: A
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Which of the following form strong hydrogen bonding among itself?

1. HF
2. H2O
3. NH3
4. CH4
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Answer: A
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Ar-35 decay y…Emission?

1. Neutron emission
2. B-
3. B+(positron emission)
4. Alpha paricle
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Answer: C
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As a result of Beta Decay?

1. Atomic no. increase by 1
2. Atomic no.decrease by 1
3. Increase by 2 unit
4. decrease by 2 unit
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Answer: A
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