Chemistry
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Which one of the following in the form of its chloride does not impart characteristics colour to the flame?
Answer: C. Mg The following Mg in the form of its chloride does not impact characteristics colour to the flame.
Answer: C. Mg
See lessThe following Mg in the form of its chloride does not impact characteristics colour to the flame.
The elements of group 2 form compounds which have the following magnetic nature.
Answer: B. Diamagnetic The elements of group 2 form compounds which have the following magnetic nature is diamagnetic.
Answer: B. Diamagnetic
See lessThe elements of group 2 form compounds which have the following magnetic nature is diamagnetic.
Which of the following elements does not form ionic hydride?
Answer: D. Sr The following Sr does not form ionic hydride.
Answer: D. Sr
See lessThe following Sr does not form ionic hydride.
The alkali metal that reacts with nitrogen directly to form nitrides is:
Answer: A. Li The alkali metals that reacts with nitrogen directly to form nitrides is Li.
Answer: A. Li
See lessThe alkali metals that reacts with nitrogen directly to form nitrides is Li.
Alkali metals form peroxide and superoxide except:
Answer: C. Li Alkali metals form peroxide and superoxide except Li.
Answer: C. Li
See lessAlkali metals form peroxide and superoxide except Li.
Which of the following do not impart characteristic colours to the flame?
Answer: C. Both A and B The following Be and Mg do not impart characteristic colours to the flame.
Answer: C. Both A and B
See lessThe following Be and Mg do not impart characteristic colours to the flame.
Property of the alkaline earth metals that increases with their atomic number.
Answer: A. Solubility of their hydroxide in water Property of the alkaline earth metals that increases with their atomic number and solubility of their hydroxide in water.
Answer: A. Solubility of their hydroxide in water
See lessProperty of the alkaline earth metals that increases with their atomic number and solubility of their hydroxide in water.
Calcium sulphate is sparingly soluble in:
Answer: A. Water Calcium phosphate is sparingly soluble in water.
Answer: A. Water
See lessCalcium phosphate is sparingly soluble in water.
Which pairs of atomic numbers represent s-block elements?
Answer: D. 3,12 3,12 of atomic numbers represent s-block elements.
Answer: D. 3,12
See less3,12 of atomic numbers represent s-block elements.
In curing cement plasters, water is sprinkled from time to time. This helps in:
Answer: C. Developing inter locking needle like crystals of hydrated silicates In curing cement plasters, water is sprinkled from time to time. This helps in developing inter locking needle like crystals of hydrated silicates.
Answer: C. Developing inter locking needle like crystals of hydrated silicates
See lessIn curing cement plasters, water is sprinkled from time to time. This helps in developing inter locking needle like crystals of hydrated silicates.