Cluster · Metals and Their Chemical Properties
| Question | Category | Subtype | Difficulty | |
|---|---|---|---|---|
|
A vessel is exposed to moist air for a long time. It acquires a dull, green coating. What is the vessel made up of? [Constable GD Examination 2022] pipeline-764757
|
science | — | intermediate | |
|
Which of the following is the most widely used method for refining impure metals? [SICPO Paper I 2023] pipeline-764733
|
science | — | intermediate | |
|
______________ is a process in which two closely fitting parts are joined using a filler material that is heated above its melting point and distributed into the gap by capillary action. [Constable GD Examination 2022] pipeline-764220
|
science | — | intermediate | |
|
Which among the following pairs of ore-metal is incorrect? [Constable GD Examination 2022] pipeline-764407
|
science | — | intermediate | |
|
Sphalerite is the ore of which of the following metals? [Constable GD Examination 2022] pipeline-764385
|
science | — | intermediate | |
|
Which is the most common ore of oxidised mercury that occurs in granular crusts or veins associated with volcanic activity and hot springs? [MTS Non Tech Havaldar CBIC and CBN Examination 2023] pipeline-764524
|
science | — | intermediate | |
|
Which of the following statements is correct? [SICPO Paper I 2023] pipeline-764482
|
science | — | intermediate | |
|
With which substances does silver react and turn black? [RRB NTPC CBT] pipeline-1181387
|
science | — | intermediate | |
|
The process of depositing a layer of any desired metal on another material, by means of electricity, is called _________ [RRB NTPC CBT] pipeline-1191845
|
science | — | intermediate | |
|
The sulphide ores are converted into oxides by heating strongly in the presence of excess air. This process is known as. [RRB NTPC CBT] pipeline-1181340
|
science | — | intermediate | |
|
During electrolytic refining of zinc, it [RRB NTPC CBT] pipeline-1191846
|
science | — | intermediate | |
|
Which is the most common ore of oxidised mercury that occurs in granular crusts or veins associated with volcanic activity and hot springs? [RRB NTPC CBT] pipeline-1181059
|
science | — | intermediate | |
|
Which of the following is the most widely used method for refining impure metals? [SSC CPO 2023] pipeline-1180885
|
science | — | intermediate | |
|
The process of depositing a layer of zinc on iron is called_________. [SSC MTS 2022] pipeline-1180881
|
science | — | intermediate | |
|
Ores are roasted in order to- [RRB NTPC CBT] pipeline-1180890
|
science | — | intermediate | |
|
Which of the following is the most widely used method for refining impure metals? [RRB NTPC CBT] pipeline-1180891
|
science | — | intermediate | |
|
Which of the following is an ore of thorium? [RRB NTPC CBT] pipeline-1180878
|
science | — | intermediate | |
|
Which of the following is NOT a non-ferrous metallic mineral? [RRB NTPC CBT] pipeline-1180907
|
science | — | intermediate | |
|
Which one of the following is a non-metallic mineral? [RRB NTPC CBT] pipeline-1180874
|
science | — | intermediate | |
|
_________ is the process of making a thick oxide layer on aluminum. [RRB NTPC CBT] pipeline-1180911
|
science | — | intermediate | |
|
______________ is a process in which two close-fitting parts are joined by using a filler material which is heated above its melting point and distributed in the gap by capillary action. [SSC GD 2022] pipeline-1180893
|
science | — | intermediate | |
|
The process of forming a thick layer of aluminium oxide on the surface of aluminium so as to protect it from corrosion is called: [RRB NTPC CBT] pipeline-1180913
|
science | — | intermediate | |
|
Which of the following is NOT an ore of iron? [SSC CGL 2019] pipeline-1180861
|
science | — | intermediate | |
|
A vessel is exposed to moist air for a long time. It acquires a dull, green coating. What is the vessel made up of? [SSC GD 2022] pipeline-1180872
|
science | — | intermediate | |
|
Silver ornament becomes black after some time when exposed to air because: [RRB NTPC CBT] pipeline-1180916
|
science | — | intermediate | |
|
By which of the following processes are metals of high reactivity extracted from purified molten ore? [RRB NTPC CBT] pipeline-1180860
|
science | — | intermediate | |
|
Which among the following pairs of ore-metal is incorrect? [SSC GD 2022] pipeline-1180906
|
science | — | intermediate | |
|
Which of the following is known as Fool’s Gold ? [SSC GD 2022] pipeline-1180879
|
science | — | intermediate | |
|
Galvanisation is a process in which a protective_________coating is applied on iron to prevent it from rusting. [SSC MTS 2022] pipeline-1180901
|
science | — | intermediate | |
|
Which of the following is a copper ore? [RRB NTPC CBT] pipeline-1180902
|
science | — | intermediate | |
|
Which of the following is an ore of aluminium? [RRB NTPC CBT] pipeline-1180919
|
science | — | intermediate | |
|
The black coating formed on silver jewellery is: [SSC MTS 2024] pipeline-1180912
|
science | — | intermediate | |
|
The process in which metals are extracted from their ores by heating beyond the melting point is called________. [SSC MTS 2022] pipeline-1180882
|
science | — | intermediate | |
|
Sphalerite is the ore of which of the following metals? [SSC GD 2022] pipeline-1180871
|
science | — | intermediate | |
|
Which acid is used in the anodising process? [RRB NTPC CBT] pipeline-1180867
|
science | — | intermediate | |
|
The substance used in thermite process of reducing metal ores is- [RRB NTPC CBT] pipeline-1180900
|
science | — | intermediate | |
|
Which metal is used in electroplating on iron to protect it from corrosion and formation of rust? [RRB NTPC CBT] pipeline-1180918
|
science | — | intermediate | |
|
Which of the following in the air turns silver articles black (when exposed to air)? [RRB NTPC CBT] pipeline-1180862
|
science | — | intermediate | |
|
What is the ore of aluminum called? [RRB NTPC CBT] pipeline-1180897
|
science | — | intermediate | |
|
Which is the most common ore of oxidised mercury that occurs in granular crusts or veins associated with volcanic activity and hot springs ? [SSC MTS 2023] pipeline-1180880
|
science | — | intermediate | |
|
What is the important use of coke? [RRB NTPC CBT] pipeline-1180896
|
science | — | intermediate | |
|
The compound of a metal found in nature is called: [RRB NTPC CBT] pipeline-1180873
|
science | — | intermediate | |
|
Which of the following is the ore of lead? [RRB NTPC CBT] pipeline-1180914
|
science | — | intermediate | |
|
Dolomite is an ore of: [RRB NTPC CBT] pipeline-1180864
|
science | — | intermediate | |
|
______ is a process of forming a thick oxide layer of aluminium. [RRB NTPC CBT] pipeline-1180883
|
science | — | intermediate | |
|
The process in which metals are extracted from their ores by heating beyond the melting point is called________ . [RRB NTPC CBT] pipeline-1180917
|
science | — | intermediate | |
|
Which of the following metals has an ore called Feldspar? pipeline-14274
|
reasoning | — | intermediate | |
|
Cinnabar is an ore of which among the following elements? pipeline-2877
|
reasoning | — | intermediate | |
|
Galena is an ore of _______. pipeline-6573
|
reasoning | — | intermediate | |
|
Sphalerite is the ore of which metal among the following? pipeline-629953
|
reasoning | — | intermediate |