Containers for carrying strong acids are made of (a) platinum (b) brass (c) copper (d) lead

1 Answer

Answer :

Ans:(d)

Related questions

Description : For platinum thermocouples, lead wires are made of (A) Copper & copper-nickel alloys (B) Copper & iron (C) Iron & nickel (D) Tin & nickel

Last Answer : (A) Copper & copper-nickel alloys

Description : Brass is made of – (1) copper and tin (2) tin and lead (3) copper and zinc (4) copper, tin and zinc

Last Answer : (3) copper and zinc Explanation: Brass is an alloy of copper and zinc; the proportions of zinc and copper can be varied to create a range of brasses with varying properties. By Comparison, bronze is principally an alloy of copper and tin.

Description : Brass is made of (1) copper and tin (2) tin and lead (3) copper and zinc (4) copper, tin and zinc

Last Answer : copper and zinc

Description : The best conductors of heat are A) Silver and Copper B) Lead and Mercury C) Iron and Tin D) Gold and Platinum

Last Answer : A) Silver and Copper

Description : Brass is an alloy of - (1) Lead and tin (2) Zine and copper (3) Antimony, tin and lead (4) Zinc, tin and copper

Last Answer : (2) Zine and copper Explanation: Brass is an alloy of copper and zinc; the proportions of zinc and copper can be varied to create a range of brasses with varying properties. By comparison ... , including alloys with arsenic, phosphorus, aluminium, manganese, and silicon, are commonly termed "brome".

Description : Which of the following metals is the most prone to work hardening? (A) Brass (B) Aluminium (C) Copper (D) Lead

Last Answer : Option A

Description : German silver is an alloy of (A) Zinc, lead and nickel (B) Silver, gold and lead (C) Copper, nickel and zinc (D) Copper, brass and zinc

Last Answer : Answer: Option C

Description : Brass is an alloy of (A) Copper and zinc (B) Zinc and lead (C) Tin and silver (D) Zinc and nickel

Last Answer : Answer: Option A

Description : Brass is an alloy of (1) Lead and tin (2) Zinc and copper (3) Antimony, tin and lead (4) Zinc, tin and copper

Last Answer : Zinc and copper

Description : Containers made of high silicon cast iron (14% Si) are not suitable for the storage of (A) Acetic acid (B) Benzoic & boric acids (C) Phosphoric acid (95%) & sulphuric acid (95%) (D) Hydrochloric acid (concentrated)

Last Answer : (D) Hydrochloric acid (concentrated)

Description : Why are substances like Platinum and Palladium offer used for carrying out electrolysis in aqueous solution ?

Last Answer : Platinum and palladium is inert electrodes. They are not react with the ions of electrolyte and products of electrolysis. Hence they are used as electrodes during electrolysis. Hence they ... electrodes during electrolysis. Hence they are used as electrodes during electrolysis in aqueous solution. 

Description : Mercury is transported in metal containers made of (A) Aluminium (B) Iron (C) Lead (D) Nicke

Last Answer : (B) Iron

Description : Mercury is transported in metal containers made of (A) Aluminium (B) Iron (C) Lead (D) Nickel

Last Answer : (B) Iron

Description : In hot wire anemometer used for gas flow measurement, the wire is normally made of (A) Copper (B) Platinum (C) Constantan (D) Chromium

Last Answer : (B) Platinum

Description : How to get a strong odor out of plastic storage containers?

Last Answer : answer:Here’s a website that tells you some different ways. I’ve used the soaking and the baking soda method. Both work great.

Description : For ammonia refrigerating systems, the tubes of a shell and tube condenser are made of (a) copper (b) aluminium (c) steel (d) brass

Last Answer : Ans: c

Description : Tubes of multiple effect evaporator used for concentration of sugar cane juice are made of (A) Nickel (B) Copper (C) Stainless steel (D) Brass

Last Answer : (B) Copper

Description : Dip stick used for measuring the level of petro fuels (e.g. petrol, diesel, fuel oil etc.) in the storage tank is usually made of (A) Brass (B) Copper (C) High carbon steel (D) Aluminium

Last Answer : (A) Brass

Description : Steam condenser tubes are made of admiralty brass, in which percentage of zinc & copper are __________ respectively. (A) 70 & 30 (B) 30 & 70 (C) 50 & 50 (D) 90 & 10

Last Answer : (A) 70 & 30

Description : Temperature of hot gases flowing in a pipe is measured by a thermocouple inserted in the thermal well. The thermal well made of __________ will facilitate the most accurate measurement of the temperature. (A) Copper (B) Steel (C) Aluminium (D) Brass

Last Answer : Option A

Description : Temperature of hot gases flowing in a pipe is measured by a thermocouple inserted in the thermal well. The thermal well made of __________ will facilitate the most accurate measurement of the temperature. (A) Copper (B) Steel (C) Aluminium (D) Brass

Last Answer : Option A

Description : The pump is mostly made of: e) Aluminium c) Brass f) Copper d) Plastic

Last Answer :  Aluminium

Description : The pump is mostly made of: A. Aluminium B. Copper C. Brass D. Plastic

Last Answer : Aluminium 

Description : Liquid ammonia is shipped in __________ containers. (A) Steel (B) Aluminium (C) Glass (D) Lead lined

Last Answer : (C) Glass

Description : The monazite sands on the Kerala coasts, used for generating nuclear energy contain – (1) platinum (2) copper (3) uranium (4) bauxite

Last Answer : (3) uranium Explanation: Monazite sands contain uranium.

Description : Which of the following metals can deposit copper from copper sulphate solution? (1) platinum (2) Mercury (3) Iron (4) Gold

Last Answer : (3) Iron Explanation: The iron displaces copper from its salt, to make iron sulfate solution and deposit a thin coating of metallic copper on the surface of the metal. In general, any metal higher than copper in the "electromotive series" will displace copper from copper sulfate solution.

Description : Which of the following metals is stored in kerosene oil? (1) Platinum (2) Copper (3) Sodium (4) Gold

Last Answer : (3) Sodium Explanation: Owing to its extreme reactivity, sodium occurs in nature only combined in compounds never as a pure elemental metal.

Description : For which of the following substances, the resistance decreases with increase in temperature? (1) Pure silicon (2) Copper (3) Nichrome (4) Platinum

Last Answer : (3) Nichrome Explanation: Nichrome has high resistance and it is called a resistor.

Description : Which of the following thermocouples is incapable of measuring sub￾zero (i.e., < 0°C) temperature? (A) Chromel-alumel (B) Iron-constantan (C) Platinum-platinum + rhodium (D) Copper-constantan

Last Answer : (C) Platinum-platinum + rhodium

Description : Catalyst used during the manufacture of 'Vanaspati Ghee' is (A) Zinc (B) Nickel (C) Platinum (D) Copper

Last Answer : (B) Nickel

Description : The following thermocouple may be used for measuring temperature upto 1873°K. (A) Chromel-alumel (B) Copper-constantan (C) Platinum-platinum rhodium (D) Iron-constantan

Last Answer : (C) Platinum-platinum rhodium

Description : Which of the following metals can deposit copper from copper sulphate solution ? (1) Platinum (2) Mercury (3) Iron (4) Gold 

Last Answer : Iron

Description : For which of the following substances, the resistance decreases with increase in temperature? (1) Pure silicon (2) Copper (3) Nichrome (4) Platinum

Last Answer : Nichrome

Description : Which of the following statements is correct? I. German silver is an alloy of silver, copper and zinc II. There is no zinc in brass III. Bronze is an alloy of copper and tin (a) I, II, and III (b) Only III (c) I and III (d) I and II

Last Answer : Ans:(b)

Description : What is the name for the greenblue coat- ing that forms naturally on copper; bronze and brass?

Last Answer : Verdigris

Description : Which of the following substances undergoes chemical change on heating? (1) Sodium chloride (2) Silica (3) Lead nitrate (4) Platinum wire

Last Answer : (3) Lead nitrate Explanation: Lead nitrate on heating decomposes to lead monoxide, nitrogen dioxide and oxygen. NO2 is liberated, along with oxygen, as a reddish brown gas.

Description : At room temperature, the metal that remains liquid is: (1) Mercury (2) Platinum (3) Lead (4) Zinc

Last Answer : (1) Mercury Explanation: Mercury is the only metal that is a liquid at normal temperatures and pressure. At room temperatureand pressure, mercury neither readily share valence electrons with other atoms nor ... Infact, mercury is the only metal that doesn't form diatomic molecules in the has phase.

Description : Which of the following substances undergoes chemical change on heating? (1) Sodium chloride (2) Silica (3) Lead nitrate (4) Platinum wire

Last Answer : (3) Lead nitrate Explanation: Lead nitrate on heating decomposes to lead monoxide, nitrogen dioxide and oxygen. NO2 is liberated, along with oxygen, as a reddish brown gas.

Description : The natural resource, known as black gold is – (1) coal (2) lead (3) tin (4) platinum

Last Answer : (1) coal Explanation: The term "coal is a black gold" is just a simple metaphor. Even today, we burn more coal than natural gas, more than nuclear, more than anything.

Description : Which of the following categories of gasoline has the highest lead susceptibility? (A) Straight run gasoline (B) Platinum reformed gasoline (C) Catalytical cracked gasoline (D) Polymer gasoline

Last Answer : (A) Straight run gasoline

Description : Platinum is a versatile catalyst for many processes in chemical industries. It is highly prone to be poisoned by the presence of (A) Carbon (B) Arsenic (C) Lead (D) Sulphur

Last Answer : (B) Arsenic

Description : The natural resource, known as black gold is (1) coal (2) lead (3) tin (4) platinum

Last Answer : coal

Description : Will copper polish also polish brass?

Last Answer : It sounds like you don’t need the abrasive action of the pot cleaner, and I’d worry that it might dull the finish on a piece of jewelry. You can use a mixture of either vinegar or lemon juice with salt as an effective tarnish remover for brass.

Last Answer : Brass contains 65% copper .

Description : When it looks like gold is it copper or brass?

Last Answer : brass is in yellow, copper itself is in red compare trumpet and gutter of copper alloys but there are several - not only brass and bronze

Description : Brass is an alloy of - (1) Nickel and Copper (2) Copper and Silver (3) Nickel and Zinc (4) Zinc and Copper

Last Answer : (4) Zinc and Copper Explanation: Brass is an alloy of copper and zinc, in proportions which can be varied to achieve varying mechanical and electrical properties.

Description : Brass contains – (1) Copper and Zinc (2) Copper and Tin (3) Copper and Silver (4) Copper and Nickel

Last Answer : (1) Copper and Zinc Explanation: Brass is an alloy made of copper and zinc; the proportions of zinc and copper can be varied to create a range of brasses with varying properties. By comparison, bronze is principally an alloy of copper and tin.

Description : Of the following commonly used materials, the one that is not an alloy is - (1) Steel (2) Brass (3) Bronze (4) Copper

Last Answer : (4) Copper Explanation: Copper is not an alloy; it is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. It is used as a constituent of various ... marine hardware and coins, and constant an used in strain gauges and thermocouples for temperature measurement.

Description : The first metal used by a man was – (1) Copper (2) Silver (3) Bronze (4) Brass

Last Answer : (1) Copper Explanation: Copper occurs naturally as native copper and was known to some of the oldest civilizations on record. It has a history of use that is at least 10,000 years old, and ... that gold and meteoric iron (but not iron smelting) were the only metals used by humans before copper.