मराठी

An Element X Forms Two Oxides Xo and Xo2. the Oxide Xo is Neutral but Xo2 is Acidic in Nature. the Element X is Most Likely to Be: (A) Sulphur (B) Carbon (C) Calcium (D) Hydrogen - Science

Advertisements
Advertisements

प्रश्न

An element X forms two oxides XO and XO2. The oxide XO is neutral but XO2 is acidic in nature. The element X is most likely to be:
(a) sulphur
(b) carbon
(c) calcium
(d) hydrogen

Advertisements

उत्तर

(b) carbon
Carbon forms two oxides, CO and CO2. The oxide CO is neutral and CO2 is acidic in nature.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 3: Metals and Non-metals - Exercise 1 [पृष्ठ १३५]

APPEARS IN

लखमीर सिंह Chemistry (Science) [English] Class 10
पाठ 3 Metals and Non-metals
Exercise 1 | Q 77 | पृष्ठ १३५

संबंधित प्रश्‍न

A solution of CuSO4 in water is .................... in colour.
(a) Pink
(b) Blue
(c) Colourless
(d) Green


_________ solution is blue in colour.
(a) CuSO4
(b) FeSO4
(c) ZnSO4
(d) Al2(SO4)3


The reaction of an iron nail with copper sulphate solution is ........... reaction.

(a) Combination

(b) Displacement

(c) Double displacement

(d) Decomposition


Name the metal which has been placed just below copper in the reactivity series.


Give reason for the following:
Blue colour of copper sulphate solution is destroyed when iron filings are added to it.


Complete and balance the following equation:


Arrange the following metals in order of their chemical reactivity, placing the most reactive metal first:
Magnesium, Copper, Iron, Sodium, Zinc, Lead, Calcium.


What is the action of water on magnesium ? Write equation of the chemical reaction involved.


Write the equation for the reaction of Iron with dilute hydrochloric acid.

Name the products formed. Also indicate the physical states of all the substances involved.


One of the following is not a neutral oxide. This is:
(a) CO
(b) H2O
(c) N2O
(d) Na2O


Out of the following oxides, the amphoteric oxide is:
(a) Fe2O3
(b) Al2O3
(c) P2O5
(d) N2O


Zinc oxide is a metal oxide. Which of the following term best describes the nature of zinc oxide:
(a) an acidic oxide
(b) a basic oxide
(c) an amphoteric oxide
(d) a neutral oxide


What are noble gases


Choose the correct alternative and rewrite the following:

Which of the following is lue in colour?


Where does the metal aluminium, used in the thermit process, occurs in the reactivity series of metals?


Aluminium is used for making cooking utensils. Which of the following properties of aluminium are responsible for the same?

(i) Good thermal conductivity

(ii) Good electrical conductivity

(iii) Ductility

(iv) High melting point


An element X is soft and can be cut with a knife. This is very reactive to air and cannot be kept open in the air. It reacts vigorously with water. Identify the element from the following.


A cable manufacturing unit tested few elements on the basisof their physical properties.

Properties W X Y Z
Malleable Yes No No Yes
Ductile Yes No No Yes
Electrical conductivity Yes Yes Yes No
Melting Point High Low Low High

Which of the above elements were dicarded for usage by the company?


Why is acidified water considered to be a good conductor of electricity?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×