Match the right column with the left column:
| Left Column | Right Column |
| 2.11.1. Noble Gas | (a) Cs |
| 2.11.2. Inver | (b) Rn |
| 2.11.3. Least electronegative element | (c) Reduction with carbon |
| 2.11.4. ZnO + C → Zn + CO | (d) An alloy |
WBBSE
Class X
Physical Science
Metallurgy
Periodic Table
04 Mark
2024
| Left Column | Right Column |
| (1) Noble Gas | (b) Rn |
| (2) Inver | (d) An alloy |
| (3) Least electronegative element | (a) Cs |
| (4) ZnO + C → Zn + CO | (c) Reduction with carbon |
Related Questions
More WBBSE Easy level questions
1/12
Q.
Left Column 2.2.1 Metal present in German silver 2.2.2 A transuranium element 2.2.3 The metal...
A.
2.2.1 – (d), 2.2.2 – (c), 2.2.3 – (b), 2.2.4 – (a)....
Q.
Explain the difference between minerals and ores.
A.
Minerals Ores Minerals are naturally occurring substances found in the Earth’s crust....
Q.
Name two copper containing alloys. State one use of each alloy.
A.
Two copper alloys: Copper Alloy Composition Uses Brass Copper (Cu): 60–80% Zinc...
Q.
Which of the following is an ore of Aluminium? (a) Hematite (b) Bauxite (c) Malachite...
A.
(b) Bauxite Explanation: Bauxite is the chief ore of aluminium. It contains...
Q.
How many groups are there in modern long form of periodic table? (a) 7 (b)...
A.
(d) 18 Explanation: The modern long form of the periodic table has...
Q.
Name the metal which is extracted in thermite process.
A.
Fe Explanation: Thermite process reduces metal oxides using Al at high temperature...
Q.
Write the names of two bio-degradable polymers.
A.
Examples of biodegradable polymers : Polylactic acid (PLA) Polyhydroxybutyrate (PHB)
Q.
What is now used in electrical circuits instead of fuse wire?
A.
MCB / Miniature circuit breaker
Q.
What type of lens is used as a magnifying glass?
A.
Convex lens Explanation: Convex lens forms virtual, erect, magnified image for objects...
Q.
Name the greenhouse gas discharged from a refrigerator.
A.
CFC / HFC
Q.
Which layer of atmosphere is susceptible to storm and rain?
A.
Troposphere Explanation: Troposphere is the lowest layer nearest to Earth's surface, where...
Q.
Which metal is used as catalyst in Haber’s process for preparation of ammonia?
A.
The metal used as a catalyst in the Haber’s process for the...