Tag: science & technology

Questions Related to science & technology

H2O is liquid, but H2S is what?

  1. GAS

  2. SOLID

  3. LIQUID

  4. NONE


Correct Option: A

Which sulfur has needle shaped crystals?

  1. Prismatic

  2. Sepetic

  3. Anatic

  4. Sotic


Correct Option: A

Gold paint made from

  1. Silver

  2. Zinc

  3. Gold

  4. Copper


Correct Option: D

AI Explanation

To answer this question, you need to understand the composition of gold paint. Gold paint is typically made by mixing gold flakes or powder with a binding agent or solvent to create a liquid or paste that can be applied to surfaces.

Among the given options:

Option A) Silver - This option is incorrect because gold paint is not made from silver. While both gold and silver are precious metals, they have different properties and compositions.

Option B) Zinc - This option is incorrect because gold paint is not made from zinc. Zinc is a common element used in various applications, but it is not typically used to create gold paint.

Option C) Gold - This option is incorrect because gold paint is not made from gold itself. Rather, gold paint contains gold flakes or powder as an additive to give it a gold-like appearance.

Option D) Copper - This option is correct because gold paint can be made by mixing copper with gold flakes or powder. Copper can be used as a base metal to create gold paint with a copper-colored base, or it can be used as a component in creating a gold-like appearance.

The correct answer is option D) Copper. This option is correct because gold paint can be made using copper as a component or base metal.

  1. Sulfur di oxide

  2. Hydrogen sulfide

  3. Sulfur

  4. Pernicious anemia


Correct Option: B
  1. Prismatic

  2. Sulfuric acid

  3. Pernicious anemia

  4. Hydrogen sulfide


Correct Option: B
  1. Sulfuric acid

  2. Sulfur

  3. Hydrogen sulfide

  4. Sulfur di oxide


Correct Option: D
  1. eXtra Modern Link

  2. eXtensible Markup Language

  3. Example Markup Language

  4. X-Markup Language


Correct Option: B

Which statement is true?

  1. All the statements are true

  2. All XML elements must have a closing tag

  3. All XML elements must be lower case

  4. All XML documents must have a DTD


Correct Option: B