आजकल सड़क की रोशनी में पीले लैम्प बहुतायत में प्रयुक्त हो रहे हैं। इन लैम्पों में निम्न में से किसका उपयोग करते हैं?
Nowadays yellow lamps are frequently used in street lights. Which of the following is used in these lamps?
Comprehensive collection of questions from General Science asked in recent state service examinations. Each question is verified with official answer keys and step-by-step bilingual solutions.
Nowadays yellow lamps are frequently used in street lights. Which of the following is used in these lamps?
Which of the following is the hardest metal?
The chemical composition of a pearl is-
The chemical formula of sapphire / ruby is -
Which is the most reactive metal?
Which of the following is the heaviest metal?
What is a mineral?
Gold can be dissolved in-
The most commonly used substance in a fluorescent tube is-
Pure gold is of how many carats?
Which of the following electronic configurations represents a metallic element?
Which of the following is the hardest element?
Which recently discovered metal/material is the most expensive in the world?
Which of the following is the best conductor of heat?
Mica is:
'Plaster of Paris' is chemically-
'Plaster of Paris' is made of -
In which of the following substances is calcium present?
In which of the following industries is mica used as a raw material?
Mercury is commonly used in thermometers because of its characteristic of:
Plaster of Paris is used to set broken bones. It is -
The chemical formula of Plaster of Paris is-
Which of the following liquids is a very good conductor of heat?
Which of the following metals is liquid at normal temperature?
Which of the following is the poorest conductor of heat?