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TLS Online TPP Program

#Question id: 20073

Which of the following statement is incorrect for metallic bond ?

#XL - P Chemistry
  1. There is attraction between delocalised electrons and atomic karnel
  2. Directionl property is shown by metal
  3. Delocalised electron can change their position easily in crystal
  4. Explanation of metallic bond can be given by 'electron sea model'
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TLS Online TPP Program

#Question id: 19511

#XL - P Chemistry

The elements of group 16 are called———-
TLS Online TPP Program

#Question id: 20039

#XL - P Chemistry

In any subshell the maximum number of electrons having same value of spin quantum number is
TLS Online TPP Program

#Question id: 19654

#XL - P Chemistry

What is the class of the substitution product of LiAlH4 and an alkyl halide reaction?
TLS Online TPP Program

#Question id: 15528

#XL - S Microbiology

The B7 family of protein interact  with distinct receptor present on the T-cells, 
TLS Online TPP Program

#Question id: 5241

#XL - S Microbiology

Genes a, b, and c are widely spaced in the bacterial genome. Transducing phage from an a+ b+ c+ bacterium were used to infect a culture of a- b- c- cells, and b+ transductants were selected. Which of the following best describes the predicted genotypes of these transductants?