IIT JEE Practice Question and Answer
8Q: What do eukaryotic cells have that prokaryotic cells do not? 1537 05b5cc666e4d2b4197774bf26
5b5cc666e4d2b4197774bf26- 1Nucleustrue
- 2Cytoplasmfalse
- 3Ribosomesfalse
- 4DNAfalse
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Answer : 1. "Nucleus"
Explanation :
Answer: A) Nucleus Explanation: Eukaryotic cells contain membrane-bound organelles, including a nucleus. Eukaryotes can be single-celled or multi-celled, such as you, me, plants, fungi, and insects. Whereas Prokaryotic cells do not contain a nucleus or any other membrane-bound organelle. Bacteria are an example of prokaryotes.
Q: What number missed in the given Number Series ? 1537 05b5cc6d1e4d2b4197774e3f7
5b5cc6d1e4d2b4197774e3f7- 115true
- 213false
- 321false
- 416false
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Answer : 1. "15"
Explanation :
Answer: A) 15 Explanation: Two series alternate here, with every third number following a different pattern.In the main series, 4 is added to each number to arrive the next.In alternate series, 5 is subtracted from each number t arrive the next number.Here in the main series 3 + 4 = 77 + 4 = 1111 + 4 = 1515 + 4 = 19 In alternate series 24 - 5 = 1919 - 5 = 14...
Q: What it goes up but never comes down? 1537 05b5cc6b4e4d2b4197774d4fc
5b5cc6b4e4d2b4197774d4fc- 1Umbrellafalse
- 2Hot air balloonfalse
- 3Agetrue
- 4Rocketfalse
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Answer : 3. "Age"
Explanation :
Answer: C) Age Explanation: Yeah, its your AGE which always goes up but sadly never comes down.
Q: Atoms Are Composed Of 1537 05b5cc6bae4d2b4197774d799
5b5cc6bae4d2b4197774d799- 1Electrons and Protonsfalse
- 2Protons and Nucleifalse
- 3Only Electronsfalse
- 4Electrons and Nucleitrue
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Answer : 4. "Electrons and Nuclei"
Explanation :
Answer: D) Electrons and Nuclei Explanation: Atoms are composed of Electrons, protons and Neutrons. Protons and Neutrons together called as Nuclei.
Q: What are the reactants in a chemical reaction? 1536 05b5cc666e4d2b4197774befd
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Answer :
Explanation :
In a chemical reaction, substances (elements or compounds) called reactants are changed into other substances (compounds or elements) called products. Hence, reactants are those which start the chemical reaction. For example: 1. In the burning of natural gas, methane (CH4) and oxygen (O2) are the reactants in the chemical reaction. are the substances formed by a chemical reaction. In the burning of natural gas, carbon dioxide (CO2) and water (H2O) are the products formed by the reaction. 2. H2+O2 ----> H2O Here H2 & O2 are called Reactants and H2O is called Product.
Q: Which of the following elements has the lowest electronegativity 1536 05b5cc636e4d2b4197774ba4d
5b5cc636e4d2b4197774ba4d- 1Brominefalse
- 2Fluorinefalse
- 3Carbonfalse
- 4Lithiumtrue
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Answer : 4. "Lithium"
Explanation :
Answer: D) Lithium Explanation: Electronegativity is the tendency for an atom to attract electrons. There are general trends on the periodic table which you can use to determine the relative electronegativity for different elements, but otherwise you can also look at their valence shell and effective nuclear charge to determine their relative electronegativity. Here from the given options, Lithium has least tendency to attract electrons and thus has a lower electronegativity.
Q: When should you stop at green and go at red? 1535 05b5cc672e4d2b4197774c07c
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Answer :
Explanation :
While eating a watermelon, we all go along the red and stops at green.
Q: Which Bank has topped the list of the country’s top 50 brands, according to WPP’s BrandZ Top 50 report 2017 ? 1534 05b5cc6c6e4d2b4197774ddf5
5b5cc6c6e4d2b4197774ddf5- 1ICICI Bankfalse
- 2SBI Bankfalse
- 3Kotak Mahindra Bankfalse
- 4HDFC Banktrue
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Answer : 4. "HDFC Bank"
Explanation :
Answer: D) HDFC Bank Explanation: HDFC Bank retains No. 1 rank in BrandZ India Top 50 for third year running BRANDZ TOP 50 REPORT. The BrandZ Top 50 Most Valuable Indian Brands ranking shows locally grown Indian brands increased 32% in value over three years. Airtel came in at No. 2 followed by State Bank of India at No. 3. The highest ranked new entrant on the list is Reliance Jio, at No.11. The BrandZ Top 50 Most Valuable Indian Brands report showed that the total value of India’s top brands has risen by 30% over the last three years. The top 50 brands are now worth $90.5 billion.

