General Science Practice Question and Answer
8 Q: Manikya (Ruby) and Sapphire are the oxides of?
1282 063bd228c74eba5069d47d896
63bd228c74eba5069d47d896- 1calciumfalse
- 2aluminumtrue
- 3siliconefalse
- 4Silverfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "aluminum"
Explanation :
Manikya, also known as ruby, and sapphire are gemstones that are forms of the mineral corundum. Corundum is not an oxide but rather a crystalline form of aluminum oxide (Al₂O₃). Both ruby and sapphire are varieties of corundum, with ruby being red due to the presence of chromium impurities, and sapphire coming in various colors, except red (which would be classified as ruby), often due to different trace elements.
Q: Burns caused by steam are much more severe than those caused by boiling water because-
1282 06078e69c0372d85428879559
6078e69c0372d85428879559- 1Steam pierces through the pores of body quicklyfalse
- 2Steam has latent heatfalse
- 3Temperature of steam is highertrue
- 4Steam is gas and engulfs the body quicklyfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "Temperature of steam is higher"
Q: Which of the following materials has the least resistivity?
1282 063287ca78146e66c2992e310
63287ca78146e66c2992e310- 1Coppertrue
- 2Ironfalse
- 3Carbonfalse
- 4Brassfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "Copper "
Q: Which one of the following did experiments with pea plants and found that pea plant has some traits which come in pairs - such as rough or smooth, tall or short, yellow or green etc.?
1280 06246f78c398e4a497b448daf
6246f78c398e4a497b448daf- 1Dr. M.S. Swaminathanfalse
- 2Gregor Johann Mendeltrue
- 3George Mestralfalse
- 4Charles Darwinfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "Gregor Johann Mendel "
Q: What makes a reptile a reptile?
1280 060991857c4aedb3e8066d772
60991857c4aedb3e8066d772- 1Non-Hearingfalse
- 2Egg-layingtrue
- 3Cold bloodedfalse
- 4Warm Bloodedfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "Egg-laying "
Q: Who discovered insulin?
1279 061af47b03f777d0f380f6d23
61af47b03f777d0f380f6d23- 1Karl Benzfalse
- 2Louis Pasteurfalse
- 3Niels Bohrfalse
- 4F. G. Vatingtrue
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 4. "F. G. Vating"
Q: The Drone in honey-bee are
1273 06389c853c878936066e7b952
6389c853c878936066e7b952- 1Fertile maletrue
- 2Fertile femalefalse
- 3Sterile malefalse
- 4Sterile femalefalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "Fertile male "
Q: Which is not a source of air pollution?
1270 060fe37e6f8986716bdf69e7d
60fe37e6f8986716bdf69e7d- 1Automobilesfalse
- 2Industriesfalse
- 3Solid Wastetrue
- 4Dust Particlesfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice