S-Block Elements Group 1 and 2-Preparation and Properties [NEET (NTA)-National Eligibility cum Entrance Test (Medical) Chemistry]: Questions 1 - 6 of 9
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Question number: 1
» S-Block Elements Group 1 and 2 » Preparation and Properties » Sodium Hydroxide
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In the following reaction, , What is A?
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Question number: 2
» S-Block Elements Group 1 and 2 » Preparation and Properties » Sodium Hydroxide
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Which of the following sodium compound will give phosphine gas when reacted with yellow phosphorus?
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Question number: 3
» S-Block Elements Group 1 and 2 » Preparation and Properties » Sodium Carbonate
Question
Magnesium chloride exists as MgCl 2. 6H 2 O, but sodium chloride exists as . Why?
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| Choice (4) | Response | |
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a. | Because of + 2 oxidation state. | |
b. | hydration energies of alkaline earth metals are higher | |
c. | alkaline earth metals are more electropositive | |
d. | lower hydration energies of alkaline earth metals | |
Question number: 4
» S-Block Elements Group 1 and 2 » Preparation and Properties » Sodium Hydroxide
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Write down the increasing order of melting points of alkali metals?
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Question number: 5
» S-Block Elements Group 1 and 2 » Preparation and Properties » Sodium Hydroxide
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What will the product when dry ammonia is passed over sodium at 400 0 C in absence of air?
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Question number: 6
» S-Block Elements Group 1 and 2 » Preparation and Properties » Sodium Hydroxide
Question
Which of the following is true about sodium?
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| Choice (4) | Response | |
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a. | NaOH solution does not react with chlorine. | |
b. | NaOH is primary standard in volumetric analysis | |
c. | Manganous hydroxide is soluble in excess of NaOH solution. | |
d. | NaOH is used in concentration of bauxite ore | |