NTA (UGC) NET Paper 1 Questions (Part 4 of 30)
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- A B (salt) Na + H2 (alcohol) B MeI C (ether) C Conc. HI MeI A NaOH⟋I2 iodoform heat. The alcohol A, salt B and ether C, are respectively
- CH3OH, CH3ONa, CH3 − O-CH3
- CH3OH, C2H5ONa, CH3 − O-C2H5
- C2H5OH, C2H5ONa, C2H5 − O-C2H5
- C2H5OH, C2H5ONa, CH3O-C2H5
- In any ecosystem, the primary producers such as photosynthetic plants are the most abundant and predators such as tigers are the least abundant. The fundamental law responsible for this pattern is
- first law of thermodynamics
- second law of thermodynamics
- Mendel՚s laws of genetics
- law of conservation of mass
- In the Siberian forests, carbon fixation is expected to be maximum in
- January
- July
- October
- April
- Movement of water in a tree takes place in
- roots only
- in the central part of the stem
- in the peripheral part of the stem
- leaves only
- Which of the following is not used as a fertilizer?
- Ammonium nitrate
- Ammonium phosphate
- Urea
- Sodium chloride
- In DNA, Adenosine pairs with Thymine, and Guanine pairs with Cytosine. If Adenosine constitutes 18% and Guanine constitutes 24% of all nucleotides in a DNA preparation, it must be a
- single stranded DNA
- double stranded DNA
- very short stretch of double stranded DNA
- multi-chromosomal DNA
- A bacterium which is 1 in diameter and divides every 20 minutes, forms a 1 mm diameter colony in 24 hours in a growth medium with limited nutrients. The number of cells in the colony is approximately
- 1000
- 109
- 2 × 72
- 272
- Burns caused by steam are more serious than burns caused by boiling water because
- steam has large latent heat
- steam has a very large specific heat compared to water
- steam is hotter than boiling water
- steam being a gas makes easy contact with skin
- The largest decimal number that a four byte integer can represent is approximately
- 105
- 107
- 109
- 1011
- A modern personal computer is capable of multiplying two numbers in a few
- picoseconds
- nanoseconds
- microseconds
- milliseconds