Property of the alkaline earth metals that increases with their atomic number
Options
(a) solubility of their hydroxides in water (b) solubility of their sulphates in water (c) ionization energy (d) electronegativity
Correct […]
Which of the following oxides is not expected to react with sodium hydroxide
Options
(a) CaO (b) SiO₂ (c) BeO (d) B₂O₃
Correct Answer:
CaO
Explanation:
No explanation available. Be the first to […]
In the case of alkali metals, the covalent character decreases in the order
Options
(a) MF > MCl > MBr > MI (b) MF > MCl > MI > MBr (c) MI > […]
A solid compound X on heating gives CO₂ and a residue . The residue mixed with water forms Y. On passing an excess of CO₂ through Y in water, a clear solution Z is obtained […]
Identify the correct statement:
Options
(a) Plaster of paris can be obtained by hydration of gypsum (b) Plaster of paris is obtained by partical oxidation of gypsum (c) Gypsum contains a lower percentage […]
The formula for calcium chlorite is
Options
(a) CaClO₂ (b) Ca(ClO₂)₂ (c) Ca(ClO₄)₂ (d) Ca(ClO₃)₂
Correct Answer:
Ca(ClO2)₂
Explanation:
No explanation available. Be the first to write the explanation for this question by […]
Which of the following is not hygroscopic
Options
(a) CsCl (b) MgCl₂ (c) CaCl₂ (d) LiCl
Correct Answer:
CsCl
Explanation:
No explanation available. Be the first to write the explanation for this question […]
Beryllium and aluminium exhibit many properties which are similar. But, the two elements differ in
Options
(a) maximum covalency in compounds (b) exhibiting amphoteric nature in their oxides (c) forming covalent halides (d) […]
The radius of curvature of a concave mirror is 24 cm and the imager is magnified by 1.5 times. The object distance is
Options
(a) 20 cm (b) 8 cm (c) 16 cm […]
The focal length of the objective of a terrestrial telescope is 80 cm and it is adjusted for parallel rays, then its power is 20. If the focal length of erecting lens is 20 cm, […]
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