Download App

Analytical Chemistry Uses of Ammonium Hydroxide and Sodium Hydroxide — Chemistry STD 10 — Question

ICSE BoardEnglish MediumSTD 10ChemistryAnalytical Chemistry Uses of Ammonium Hydroxide and Sodium Hydroxide1 Mark
MCQ
Salts of which elements are generally coloured :
  • ✓
    Transition
  • B
    Normal
  • C
    Lanthanides
  • D
    Inner-transition
✓

Answer

Correct option: A.
Transition
(a) Transition
Explanation : Transition elements are generally known for their ability to form coloured compounds because the electrons in the valence shell of transition metals can absorb visible light, leading to the absorption of certain wavelengths and the reflection of others, which gives rise to colour. Lanthanides and Inner-transition elements can also form coloured compounds, but the colouration in their compounds is less intense compared to transition elements. Thus, they are not as well-known for their colourful compounds as transition elements.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "MCQ" from Analytical Chemistry Uses of Ammonium Hydroxide and Sodium Hydroxide→Analytical Chemistry Uses of Ammonium Hydroxide and Sodium Hydroxide — all question types→Chemistry STD 10 question papers→ICSE Board STD 10 question papers→ICSE Board question paper generator→

Similar questions

The % age of oxygen in aluminium sulphate [Al2(SO4)3] is: [Al = 27; S = 32; O = 16]
→
Which one is weak electrolyte?
→
The bronze medals are made up of:
→
Assertion : The elements of the different group have similar chemical properties.
Reason : It is because they have same number of valence electrons.
→
Element $X$ is extracted by the electrolysis of a molten compound of elements $X$ and $Y$. The electrode reactions are as shown.
At the cathode: $X ^{2+}( I )+2 e ^{-} \rightarrow X$
(I) At the anode: $2 Y ^{2-}$ (I) $\rightarrow Y _2(g)+4 e ^{-}$
What is?
→
When fused lead bromide is electrolysed we observe:
→
Assertion (A): Dry HCl is collected by the downward displacement of air.
Reason (R): HCl is heavier than air.
→
Sodium and chlorine are in the same period. The atomic volume of chlorine will be:
→

Sodium chloride is often known as 'common salt' or 'table salt' 
Which compound represents sodium chloride?

 Conducts electricity when solid Conducts electricity When molten At room tempreture and pressure Can be bent or shaped 
Option AYes YesSolid Yes
Option BNo No Solid No 
Option CNo YesSolid No 
Option DNoNo Solid Yes
→
Valency of aluminium is :
→